212212120121012 has 192 divisors, whose sum is σ = 413728286146560. Its totient is φ = 94443148800000.

The previous prime is 212212120120937. The next prime is 212212120121017. The reversal of 212212120121012 is 210121021212212.

It is a super-2 number, since 2×212212120121012² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212212120121017) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 176696186012 + ... + 176696187212.

It is an arithmetic number, because the mean of its divisors is an integer number (2154834823680).

Almost surely, 2^{212212120121012} is an apocalyptic number.

212212120121012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212212120121012 is a deficient number, since it is larger than the sum of its proper divisors (201516166025548).

212212120121012 is a wasteful number, since it uses less digits than its factorization.

212212120121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2614 (or 2612 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 212212120121012 its reverse (210121021212212), we get a palindrome (422333141333224).

The spelling of 212212120121012 in words is "two hundred twelve trillion, two hundred twelve billion, one hundred twenty million, one hundred twenty-one thousand, twelve".