102012021212111 has 24 divisors (see below), whose sum is σ = 105860337340032. Its totient is φ = 98298608486400.

The previous prime is 102012021212041. The next prime is 102012021212119. The reversal of 102012021212111 is 111212120210201.

It is not a de Polignac number, because 102012021212111 - 2²⁶ = 102011954103247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102012021212111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102012021212119) 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, 2052654815 + ... + 2052704511.

It is an arithmetic number, because the mean of its divisors is an integer number (4410847389168).

Almost surely, 2^{102012021212111} is an apocalyptic number.

102012021212111 is a deficient number, since it is larger than the sum of its proper divisors (3848316127921).

102012021212111 is an equidigital number, since it uses as much as digits as its factorization.

102012021212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58863 (or 58832 counting only the distinct ones).

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

Adding to 102012021212111 its reverse (111212120210201), we get a palindrome (213224141422312).

The spelling of 102012021212111 in words is "one hundred two trillion, twelve billion, twenty-one million, two hundred twelve thousand, one hundred eleven".