202402021212 has 48 divisors (see below), whose sum is σ = 524830028800. Its totient is φ = 67456534320.

The previous prime is 202402021169. The next prime is 202402021231. The reversal of 202402021212 is 212120204202.

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

It is a congruent number.

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, 542037 + ... + 835827.

Almost surely, 2^202402021212 is an apocalyptic number.

It is an amenable number.

202402021212 is an abundant number, since it is smaller than the sum of its proper divisors (322428007588).

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

202402021212 is a wasteful number, since it uses less digits than its factorization.

202402021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300183 (or 300175 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 202402021212 its reverse (212120204202), we get a palindrome (414522225414).

The spelling of 202402021212 in words is "two hundred two billion, four hundred two million, twenty-one thousand, two hundred twelve".