21102010122 has 8 divisors (see below), whose sum is σ = 42204020256. Its totient is φ = 7034003372.

The previous prime is 21102010117. The next prime is 21102010141. The reversal of 21102010122 is 22101020112.

21102010122 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

21102010122 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 21102010098 and 21102010107.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1758500838 + ... + 1758500849.

It is an arithmetic number, because the mean of its divisors is an integer number (5275502532).

Almost surely, 2^21102010122 is an apocalyptic number.

21102010122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21102010122 is a wasteful number, since it uses less digits than its factorization.

21102010122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3517001692.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21102010122 its reverse (22101020112), we get a palindrome (43203030234).

The spelling of 21102010122 in words is "twenty-one billion, one hundred two million, ten thousand, one hundred twenty-two".