202012121212 has 24 divisors (see below), whose sum is σ = 389477923632. Its totient is φ = 90914544000.

The previous prime is 202012121161. The next prime is 202012121263. The reversal of 202012121212 is 212121210202.

It is a happy number.

202012121212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (202012121161) and next prime (202012121263).

202012121212 is a modest number, since divided by 12121212 gives 2020 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22724193 + ... + 22733080.

It is an arithmetic number, because the mean of its divisors is an integer number (16228246818).

Almost surely, 2^202012121212 is an apocalyptic number.

202012121212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

202012121212 is a deficient number, since it is larger than the sum of its proper divisors (187465802420).

202012121212 is a wasteful number, since it uses less digits than its factorization.

202012121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45457389 (or 45457387 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 202012121212 its reverse (212121210202), we get a palindrome (414133331414).

The spelling of 202012121212 in words is "two hundred two billion, twelve million, one hundred twenty-one thousand, two hundred twelve".