21011102212002 has 32 divisors (see below), whose sum is σ = 48025596511872. Its totient is φ = 6003144557184.

The previous prime is 21011102211943. The next prime is 21011102212033. The reversal of 21011102212002 is 20021220111012.

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, 9237328 + ... + 11284964.

It is an arithmetic number, because the mean of its divisors is an integer number (1500799890996).

Almost surely, 2^{21011102212002} is an apocalyptic number.

21011102212002 is an abundant number, since it is smaller than the sum of its proper divisors (27014494299870).

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

21011102212002 is a wasteful number, since it uses less digits than its factorization.

21011102212002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2291962.

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

Adding to 21011102212002 its reverse (20021220111012), we get a palindrome (41032322323014).

The spelling of 21011102212002 in words is "twenty-one trillion, eleven billion, one hundred two million, two hundred twelve thousand, two".