102112011021021 has 8 divisors (see below), whose sum is σ = 136288702533504. Its totient is φ = 68004996761280.

The previous prime is 102112011020989. The next prime is 102112011021029. The reversal of 102112011021021 is 120120110211201.

It is a happy number.

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

It is not a de Polignac number, because 102112011021021 - 2⁵ = 102112011020989 is a prime.

It is a super-2 number, since 2×102112011021021² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102112011021029) 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, 17419309765 + ... + 17419315626.

It is an arithmetic number, because the mean of its divisors is an integer number (17036087816688).

Almost surely, 2^{102112011021021} is an apocalyptic number.

It is an amenable number.

102112011021021 is a deficient number, since it is larger than the sum of its proper divisors (34176691512483).

102112011021021 is an equidigital number, since it uses as much as digits as its factorization.

102112011021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34838626371.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 102112011021021 its reverse (120120110211201), we get a palindrome (222232121232222).

The spelling of 102112011021021 in words is "one hundred two trillion, one hundred twelve billion, eleven million, twenty-one thousand, twenty-one".