21122102110102 has 8 divisors (see below), whose sum is σ = 36209317903056. Its totient is φ = 9052329475752.

The previous prime is 21122102110063. The next prime is 21122102110103. The reversal of 21122102110102 is 20101120122112.

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

It is a super-2 number, since 2×21122102110102² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21122102110103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 754360789633 + ... + 754360789660.

It is an arithmetic number, because the mean of its divisors is an integer number (4526164737882).

Almost surely, 2^{21122102110102} is an apocalyptic number.

21122102110102 is a deficient number, since it is larger than the sum of its proper divisors (15087215792954).

21122102110102 is a wasteful number, since it uses less digits than its factorization.

21122102110102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508721579302.

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

Adding to 21122102110102 its reverse (20101120122112), we get a palindrome (41223222232214).

The spelling of 21122102110102 in words is "twenty-one trillion, one hundred twenty-two billion, one hundred two million, one hundred ten thousand, one hundred two".