121100213110 has 32 divisors (see below), whose sum is σ = 220802549760. Its totient is φ = 47813287392.

The previous prime is 121100213107. The next prime is 121100213119. The reversal of 121100213110 is 11312001121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121100213119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3019207 + ... + 3059053.

It is an arithmetic number, because the mean of its divisors is an integer number (6900079680).

Almost surely, 2^121100213110 is an apocalyptic number.

121100213110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121100213110 is a deficient number, since it is larger than the sum of its proper divisors (99702336650).

121100213110 is a wasteful number, since it uses less digits than its factorization.

121100213110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43780.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 121100213110 its reverse (11312001121), we get a palindrome (132412214231).

The spelling of 121100213110 in words is "one hundred twenty-one billion, one hundred million, two hundred thirteen thousand, one hundred ten".