121010110202100 has 144 divisors (see below), whose sum is σ = 404265254062208. Its totient is φ = 27374304706560.

The previous prime is 121010110202077. The next prime is 121010110202117. The reversal of 121010110202100 is 1202011010121.

It is a super-2 number, since 2×121010110202100² (a number of 29 digits) contains 22 as substring.

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 47 ways as a sum of consecutive naturals, for example, 296826517 + ... + 297233916.

Almost surely, 2^{121010110202100} is an apocalyptic number.

121010110202100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121010110202100 is an abundant number, since it is smaller than the sum of its proper divisors (283255143860108).

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

121010110202100 is a wasteful number, since it uses less digits than its factorization.

121010110202100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594060554 (or 594060547 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121010110202100 its reverse (1202011010121), we get a palindrome (122212121212221).

The spelling of 121010110202100 in words is "one hundred twenty-one trillion, ten billion, one hundred ten million, two hundred two thousand, one hundred".