21103100210212 has 48 divisors (see below), whose sum is σ = 39316009824000. Its totient is φ = 9882608719104.

The previous prime is 21103100210209. The next prime is 21103100210281. The reversal of 21103100210212 is 21201200130112.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53081989 + ... + 53478067.

It is an arithmetic number, because the mean of its divisors is an integer number (819083538000).

Almost surely, 2^{21103100210212} is an apocalyptic number.

It is an amenable number.

21103100210212 is a deficient number, since it is larger than the sum of its proper divisors (18212909613788).

21103100210212 is a wasteful number, since it uses less digits than its factorization.

21103100210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404068 (or 404066 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 21103100210212 its reverse (21201200130112), we get a palindrome (42304300340324).

The spelling of 21103100210212 in words is "twenty-one trillion, one hundred three billion, one hundred million, two hundred ten thousand, two hundred twelve".