202120201021212 has 48 divisors (see below), whose sum is σ = 524470605926400. Its totient is φ = 67314865633200.

The previous prime is 202120201021199. The next prime is 202120201021259. The reversal of 202120201021212 is 212120102021202.

It is a happy number.

202120201021212 is a `hidden beast` number, since 20 + 212 + 0 + 201 + 0 + 21 + 212 = 666.

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, 812857162 + ... + 813105777.

It is an arithmetic number, because the mean of its divisors is an integer number (10926470956800).

Almost surely, 2^{202120201021212} is an apocalyptic number.

It is an amenable number.

202120201021212 is an abundant number, since it is smaller than the sum of its proper divisors (322350404905188).

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

202120201021212 is a wasteful number, since it uses less digits than its factorization.

202120201021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625964103 (or 1625964095 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 202120201021212 its reverse (212120102021202), we get a palindrome (414240303042414).

The spelling of 202120201021212 in words is "two hundred two trillion, one hundred twenty billion, two hundred one million, twenty-one thousand, two hundred twelve".