21103212200010 has 64 divisors (see below), whose sum is σ = 53628785949312. Its totient is φ = 5296314730496.

The previous prime is 21103212199961. The next prime is 21103212200029. The reversal of 21103212200010 is 1000221230112.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14859094 + ... + 16217246.

It is an arithmetic number, because the mean of its divisors is an integer number (837949780458).

Almost surely, 2^{21103212200010} is an apocalyptic number.

21103212200010 is an abundant number, since it is smaller than the sum of its proper divisors (32525573749302).

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

21103212200010 is a wasteful number, since it uses less digits than its factorization.

21103212200010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388647.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 21103212200010 its reverse (1000221230112), we get a palindrome (22103433430122).

The spelling of 21103212200010 in words is "twenty-one trillion, one hundred three billion, two hundred twelve million, two hundred thousand, ten".