21211000012202 has 96 divisors (see below), whose sum is σ = 43045071777792. Its totient is φ = 7627837536000.

The previous prime is 21211000012141. The next prime is 21211000012249. The reversal of 21211000012202 is 20221000011212.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 617281502 + ... + 617315862.

It is an arithmetic number, because the mean of its divisors is an integer number (448386164352).

Almost surely, 2^{21211000012202} is an apocalyptic number.

21211000012202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21211000012202 is an abundant number, since it is smaller than the sum of its proper divisors (21834071765590).

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

21211000012202 is a wasteful number, since it uses less digits than its factorization.

21211000012202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62436 (or 62425 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21211000012202 its reverse (20221000011212), we get a palindrome (41432000023414).

The spelling of 21211000012202 in words is "twenty-one trillion, two hundred eleven billion, twelve thousand, two hundred two".