212621435202 has 32 divisors (see below), whose sum is σ = 467014766400. Its totient is φ = 63998313920.

The previous prime is 212621435189. The next prime is 212621435203. The reversal of 212621435202 is 202534126212.

It is a self number, because there is not a number n which added to its sum of digits gives 212621435202.

It is not an unprimeable number, because it can be changed into a prime (212621435203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10800693 + ... + 10820360.

It is an arithmetic number, because the mean of its divisors is an integer number (14594211450).

Almost surely, 2^212621435202 is an apocalyptic number.

212621435202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212621435202 is an abundant number, since it is smaller than the sum of its proper divisors (254393331198).

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

212621435202 is a wasteful number, since it uses less digits than its factorization.

212621435202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21621218.

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 212621435202 in words is "two hundred twelve billion, six hundred twenty-one million, four hundred thirty-five thousand, two hundred two".