121020002110 has 64 divisors (see below), whose sum is σ = 253077986304. Its totient is φ = 40811097600.

The previous prime is 121020002021. The next prime is 121020002137. The reversal of 121020002110 is 11200020121.

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 977815 + ... + 1094605.

It is an arithmetic number, because the mean of its divisors is an integer number (3954343536).

Almost surely, 2^121020002110 is an apocalyptic number.

121020002110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121020002110 is an abundant number, since it is smaller than the sum of its proper divisors (132057984194).

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

121020002110 is a wasteful number, since it uses less digits than its factorization.

121020002110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117049.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 121020002110 its reverse (11200020121), we get a palindrome (132220022231).

The spelling of 121020002110 in words is "one hundred twenty-one billion, twenty million, two thousand, one hundred ten".