21203111130212 has 12 divisors (see below), whose sum is σ = 40478666703216. Its totient is φ = 9637777786440.

The previous prime is 21203111130193. The next prime is 21203111130251.

21203111130212 is nontrivially palindromic in base 10.

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, 240944444618 + ... + 240944444705.

It is an arithmetic number, because the mean of its divisors is an integer number (3373222225268).

Almost surely, 2^{21203111130212} is an apocalyptic number.

21203111130212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21203111130212 is a deficient number, since it is larger than the sum of its proper divisors (19275555573004).

21203111130212 is a wasteful number, since it uses less digits than its factorization.

21203111130212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481888889338 (or 481888889336 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

It can be divided in two parts, 2120311 and 1130212, that added together give a palindrome (3250523).

The spelling of 21203111130212 in words is "twenty-one trillion, two hundred three billion, one hundred eleven million, one hundred thirty thousand, two hundred twelve".