121101020120110 has 32 divisors (see below), whose sum is σ = 230804844107040. Its totient is φ = 45590864243712.

The previous prime is 121101020120107. The next prime is 121101020120123. The reversal of 121101020120110 is 11021020101121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141970002 + ... + 142820458.

It is an arithmetic number, because the mean of its divisors is an integer number (7212651378345).

Almost surely, 2^{121101020120110} is an apocalyptic number.

121101020120110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121101020120110 is a deficient number, since it is larger than the sum of its proper divisors (109703823986930).

121101020120110 is a wasteful number, since it uses less digits than its factorization.

121101020120110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688100.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121101020120110 its reverse (11021020101121), we get a palindrome (132122040221231).

The spelling of 121101020120110 in words is "one hundred twenty-one trillion, one hundred one billion, twenty million, one hundred twenty thousand, one hundred ten".