102212101112021 has 8 divisors (see below), whose sum is σ = 102265542900864. Its totient is φ = 102158660985040.

The previous prime is 102212101111997. The next prime is 102212101112029. The reversal of 102212101112021 is 120211101212201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102212101112021 is a prime.

It is a super-2 number, since 2×102212101112021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102212101112029) 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, 133955216 + ... + 134716086.

It is an arithmetic number, because the mean of its divisors is an integer number (12783192862608).

Almost surely, 2^{102212101112021} is an apocalyptic number.

It is an amenable number.

102212101112021 is a deficient number, since it is larger than the sum of its proper divisors (53441788843).

102212101112021 is an equidigital number, since it uses as much as digits as its factorization.

102212101112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830931.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 102212101112021 its reverse (120211101212201), we get a palindrome (222423202324222).

The spelling of 102212101112021 in words is "one hundred two trillion, two hundred twelve billion, one hundred one million, one hundred twelve thousand, twenty-one".