102021220010111 has 32 divisors (see below), whose sum is σ = 110883266027520. Its totient is φ = 93545942515200.

The previous prime is 102021220010089. The next prime is 102021220010117. The reversal of 102021220010111 is 111010022120201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102021220010111 is a prime.

It is a super-2 number, since 2×102021220010111² (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 (102021220010117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2692046915 + ... + 2692084811.

It is an arithmetic number, because the mean of its divisors is an integer number (3465102063360).

Almost surely, 2^{102021220010111} is an apocalyptic number.

102021220010111 is a deficient number, since it is larger than the sum of its proper divisors (8862046017409).

102021220010111 is a wasteful number, since it uses less digits than its factorization.

102021220010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65295.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102021220010111 its reverse (111010022120201), we get a palindrome (213031242130312).

The spelling of 102021220010111 in words is "one hundred two trillion, twenty-one billion, two hundred twenty million, ten thousand, one hundred eleven".