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120020312213221 = 773212341996843
BaseRepresentation
bin11011010010100001101000…
…000100110100011011100101
3120201221211101220210101012211
4123102201220010310123211
5111212403044411310341
61103132323102043421
734165116136145530
oct3322415004643345
9521854356711184
10120020312213221
1135273368359692
12115648a7879571
1351c7b366ba454
14218d02a9c7a17
15dd200c9e4181
hex6d28681346e5

120020312213221 has 8 divisors (see below), whose sum is σ = 137184807134144. Its totient is φ = 102860501300640.

The previous prime is 120020312213213. The next prime is 120020312213233. The reversal of 120020312213221 is 122312213020021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120020312213221 - 23 = 120020312213213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120020312213192 and 120020312213201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120020312213201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1170947175 + ... + 1171049668.

It is an arithmetic number, because the mean of its divisors is an integer number (17148100891768).

Almost surely, 2120020312213221 is an apocalyptic number.

It is an amenable number.

120020312213221 is a deficient number, since it is larger than the sum of its proper divisors (17164494920923).

120020312213221 is an equidigital number, since it uses as much as digits as its factorization.

120020312213221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2342004171.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 120020312213221 its reverse (122312213020021), we get a palindrome (242332525233242).

The spelling of 120020312213221 in words is "one hundred twenty trillion, twenty billion, three hundred twelve million, two hundred thirteen thousand, two hundred twenty-one".

Divisors: 1 7 7321 51247 2341996843 16393977901 17145758887603 120020312213221