121020010202100 has 36 divisors (see below), whose sum is σ = 350151229518944. Its totient is φ = 32272002720480.

The previous prime is 121020010202083. The next prime is 121020010202137. The reversal of 121020010202100 is 1202010020121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 201700016704 + ... + 201700017303.

Almost surely, 2^{121020010202100} is an apocalyptic number.

121020010202100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121020010202100 is an abundant number, since it is smaller than the sum of its proper divisors (229131219316844).

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

121020010202100 is a wasteful number, since it uses less digits than its factorization.

121020010202100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403400034024 (or 403400034017 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 121020010202100 its reverse (1202010020121), we get a palindrome (122222020222221).

The spelling of 121020010202100 in words is "one hundred twenty-one trillion, twenty billion, ten million, two hundred two thousand, one hundred".