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120023010223221 = 3722579931647857
BaseRepresentation
bin11011010010100100001000…
…111000111010010001110101
3120201222002100221120111011010
4123102210020320322101311
5111212424111104120341
61103133450521502433
734165243036643100
oct3322441070722165
9521862327514133
10120023010223221
1135274522306516
121156531b341a19
1351c8176658181
14218d20505d737
15dd21197d4716
hex6d2908e3a475

120023010223221 has 24 divisors (see below), whose sum is σ = 186165359899200. Its totient is φ = 68581916683392.

The previous prime is 120023010223199. The next prime is 120023010223243. The reversal of 120023010223221 is 122322010320021.

It is an interprime number because it is at equal distance from previous prime (120023010223199) and next prime (120023010223243).

It is not a de Polignac number, because 120023010223221 - 211 = 120023010221173 is a prime.

It is a super-2 number, since 2×1200230102232212 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120023010223421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12031476 + ... + 19616381.

It is an arithmetic number, because the mean of its divisors is an integer number (7756889995800).

Almost surely, 2120023010223221 is an apocalyptic number.

It is an amenable number.

120023010223221 is a deficient number, since it is larger than the sum of its proper divisors (66142349675979).

120023010223221 is a wasteful number, since it uses less digits than its factorization.

120023010223221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31673673 (or 31673666 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 120023010223221 its reverse (122322010320021), we get a palindrome (242345020543242).

The spelling of 120023010223221 in words is "one hundred twenty trillion, twenty-three billion, ten million, two hundred twenty-three thousand, two hundred twenty-one".

Divisors: 1 3 7 21 49 147 25799 77397 180593 541779 1264151 3792453 31647857 94943571 221534999 664604997 1550744993 4652234979 816483062743 2449449188229 5715381439201 17146144317603 40007670074407 120023010223221