202012120012120 has 64 divisors (see below), whose sum is σ = 500757316503840. Its totient is φ = 72731636352000.

The previous prime is 202012120012057. The next prime is 202012120012147. The reversal of 202012120012120 is 21210021210202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 202012120012094 and 202012120012103.

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, 2272819197 + ... + 2272908076.

Almost surely, 2^{202012120012120} is an apocalyptic number.

202012120012120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202012120012120 is an abundant number, since it is smaller than the sum of its proper divisors (298745196491720).

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

202012120012120 is a wasteful number, since it uses less digits than its factorization.

202012120012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4545727396 (or 4545727392 counting only the distinct ones).

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

Adding to 202012120012120 its reverse (21210021210202), we get a palindrome (223222141222322).

The spelling of 202012120012120 in words is "two hundred two trillion, twelve billion, one hundred twenty million, twelve thousand, one hundred twenty".