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220212212120101 = 9911248971779163
BaseRepresentation
bin110010000100100000100110…
…101011011011101000100101
31001212201002012200122020011001
4302010200212223123220211
5212330424102300320401
62100204032121513301
764245543621524215
oct6204404653335045
91055632180566131
10220212212120101
1164191524904123
1220846728342831
1395b4bcb965446
143c54483bda245
151a6d35956a601
hexc84826adba25

220212212120101 has 8 divisors (see below), whose sum is σ = 220436313069824. Its totient is φ = 219988114980480.

The previous prime is 220212212120081. The next prime is 220212212120137. The reversal of 220212212120101 is 101021212212022.

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 220212212120101 - 29 = 220212212119589 is a prime.

It is a super-2 number, since 2×2202122121201012 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220212212129101) 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, 122883346 + ... + 124662508.

It is an arithmetic number, because the mean of its divisors is an integer number (27554539133728).

Almost surely, 2220212212120101 is an apocalyptic number.

It is an amenable number.

220212212120101 is a deficient number, since it is larger than the sum of its proper divisors (224100949723).

220212212120101 is a wasteful number, since it uses less digits than its factorization.

220212212120101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905051.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 220212212120101 its reverse (101021212212022), we get a palindrome (321233424332123).

The spelling of 220212212120101 in words is "two hundred twenty trillion, two hundred twelve billion, two hundred twelve million, one hundred twenty thousand, one hundred one".

Divisors: 1 991 124897 1779163 123772927 1763150533 222212121211 220212212120101