21010122211102 has 8 divisors (see below), whose sum is σ = 31794078744576. Its totient is φ = 10412095962912.

The previous prime is 21010122211073. The next prime is 21010122211139. The reversal of 21010122211102 is 20111222101012.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46482571038 + ... + 46482571489.

It is an arithmetic number, because the mean of its divisors is an integer number (3974259843072).

Almost surely, 2^{21010122211102} is an apocalyptic number.

21010122211102 is a deficient number, since it is larger than the sum of its proper divisors (10783956533474).

21010122211102 is a wasteful number, since it uses less digits than its factorization.

21010122211102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92965142642.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 21010122211102 its reverse (20111222101012), we get a palindrome (41121344312114).

The spelling of 21010122211102 in words is "twenty-one trillion, ten billion, one hundred twenty-two million, two hundred eleven thousand, one hundred two".