21010212203112 has 48 divisors (see below), whose sum is σ = 62075626966080. Its totient is φ = 6366730970400.

The previous prime is 21010212203087. The next prime is 21010212203153. The reversal of 21010212203112 is 21130221201012.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13264022064 + ... + 13264023647.

It is an arithmetic number, because the mean of its divisors is an integer number (1293242228460).

Almost surely, 2^{21010212203112} is an apocalyptic number.

21010212203112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21010212203112 is an abundant number, since it is smaller than the sum of its proper divisors (41065414762968).

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

21010212203112 is a wasteful number, since it uses less digits than its factorization.

21010212203112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26528045734 (or 26528045727 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 21010212203112 its reverse (21130221201012), we get a palindrome (42140433404124).

The spelling of 21010212203112 in words is "twenty-one trillion, ten billion, two hundred twelve million, two hundred three thousand, one hundred twelve".