202220021212 has 12 divisors (see below), whose sum is σ = 386056404216. Its totient is φ = 91918191440.

The previous prime is 202220021207. The next prime is 202220021243. The reversal of 202220021212 is 212120022202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2297954743 + ... + 2297954830.

It is an arithmetic number, because the mean of its divisors is an integer number (32171367018).

Almost surely, 2^202220021212 is an apocalyptic number.

202220021212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

202220021212 is a deficient number, since it is larger than the sum of its proper divisors (183836383004).

202220021212 is a wasteful number, since it uses less digits than its factorization.

202220021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4595909588 (or 4595909586 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 202220021212 its reverse (212120022202), we get a palindrome (414340043414).

The spelling of 202220021212 in words is "two hundred two billion, two hundred twenty million, twenty-one thousand, two hundred twelve".