102021022102211 has 4 divisors (see below), whose sum is σ = 102104033512800. Its totient is φ = 101938010691624.

The previous prime is 102021022102193. The next prime is 102021022102367. The reversal of 102021022102211 is 112201220120201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102021022102211 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 102021022102211.

It is not an unprimeable number, because it can be changed into a prime (102021022152211) 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 3 ways as a sum of consecutive naturals, for example, 41505703451 + ... + 41505705908.

It is an arithmetic number, because the mean of its divisors is an integer number (25526008378200).

Almost surely, 2^{102021022102211} is an apocalyptic number.

102021022102211 is a deficient number, since it is larger than the sum of its proper divisors (83011410589).

102021022102211 is an equidigital number, since it uses as much as digits as its factorization.

102021022102211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83011410588.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102021022102211 its reverse (112201220120201), we get a palindrome (214222242222412).

The spelling of 102021022102211 in words is "one hundred two trillion, twenty-one billion, twenty-two million, one hundred two thousand, two hundred eleven".