102020121212 has 24 divisors (see below), whose sum is σ = 192307218432. Its totient is φ = 47218287600.

The previous prime is 102020121157. The next prime is 102020121227. The reversal of 102020121212 is 212121020201.

It is a super-2 number, since 2×102020121212² (a number of 23 digits) contains 22 as substring.

102020121212 is a modest number, since divided by 121212 gives 102020 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17882864 + ... + 17888567.

It is an arithmetic number, because the mean of its divisors is an integer number (8012800768).

Almost surely, 2^102020121212 is an apocalyptic number.

It is an amenable number.

102020121212 is a deficient number, since it is larger than the sum of its proper divisors (90287097220).

102020121212 is a wasteful number, since it uses less digits than its factorization.

102020121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35771489 (or 35771487 counting only the distinct ones).

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

Adding to 102020121212 its reverse (212121020201), we get a palindrome (314141141413).

The spelling of 102020121212 in words is "one hundred two billion, twenty million, one hundred twenty-one thousand, two hundred twelve".