121202100100212 has 96 divisors (see below), whose sum is σ = 291275715730944. Its totient is φ = 39201789542400.

The previous prime is 121202100100189. The next prime is 121202100100331. The reversal of 121202100100212 is 212001001202121.

It is a junction number, because it is equal to n+sod(n) for n = 121202100100191 and 121202100100200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76144848 + ... + 77720280.

It is an arithmetic number, because the mean of its divisors is an integer number (3034122038864).

Almost surely, 2^{121202100100212} is an apocalyptic number.

121202100100212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121202100100212 is an abundant number, since it is smaller than the sum of its proper divisors (170073615630732).

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

121202100100212 is a wasteful number, since it uses less digits than its factorization.

121202100100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1576329 (or 1576327 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121202100100212 its reverse (212001001202121), we get a palindrome (333203101302333).

The spelling of 121202100100212 in words is "one hundred twenty-one trillion, two hundred two billion, one hundred million, one hundred thousand, two hundred twelve".