202120223212 has 6 divisors (see below), whose sum is σ = 353710390628. Its totient is φ = 101060111604.

The previous prime is 202120223203. The next prime is 202120223251. The reversal of 202120223212 is 212322021202.

It is a self number, because there is not a number n which added to its sum of digits gives 202120223212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25265027898 + ... + 25265027905.

Almost surely, 2^202120223212 is an apocalyptic number.

It is an amenable number.

202120223212 is a deficient number, since it is larger than the sum of its proper divisors (151590167416).

202120223212 is a wasteful number, since it uses less digits than its factorization.

202120223212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50530055807 (or 50530055805 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 202120223212 its reverse (212322021202), we get a palindrome (414442244414).

The spelling of 202120223212 in words is "two hundred two billion, one hundred twenty million, two hundred twenty-three thousand, two hundred twelve".