202110021212 has 48 divisors (see below), whose sum is σ = 388194412032. Its totient is φ = 91310714880.

The previous prime is 202110021149. The next prime is 202110021301. The reversal of 202110021212 is 212120011202.

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, 5216303 + ... + 5254905.

It is an arithmetic number, because the mean of its divisors is an integer number (8087383584).

Almost surely, 2^202110021212 is an apocalyptic number.

202110021212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

202110021212 is a deficient number, since it is larger than the sum of its proper divisors (186084390820).

202110021212 is a wasteful number, since it uses less digits than its factorization.

202110021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39338 (or 39336 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 202110021212 its reverse (212120011202), we get a palindrome (414230032414).

The spelling of 202110021212 in words is "two hundred two billion, one hundred ten million, twenty-one thousand, two hundred twelve".