21010011202212 has 24 divisors (see below), whose sum is σ = 49065877595616. Its totient is φ = 6997263049728.

The previous prime is 21010011202171. The next prime is 21010011202241. The reversal of 21010011202212 is 21220211001012.

It is a junction number, because it is equal to n+sod(n) for n = 21010011202191 and 21010011202200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 759237798 + ... + 759265469.

It is an arithmetic number, because the mean of its divisors is an integer number (2044411566484).

Almost surely, 2^{21010011202212} is an apocalyptic number.

It is an amenable number.

21010011202212 is an abundant number, since it is smaller than the sum of its proper divisors (28055866393404).

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

21010011202212 is a wasteful number, since it uses less digits than its factorization.

21010011202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1518504427 (or 1518504425 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21010011202212 its reverse (21220211001012), we get a palindrome (42230222203224).

The spelling of 21010011202212 in words is "twenty-one trillion, ten billion, eleven million, two hundred two thousand, two hundred twelve".