121045113210 has 64 divisors (see below), whose sum is σ = 332233286400. Its totient is φ = 27648801792.

The previous prime is 121045113199. The next prime is 121045113221. The reversal of 121045113210 is 12311540121.

It is an interprime number because it is at equal distance from previous prime (121045113199) and next prime (121045113221).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon 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, 119136 + ... + 506244.

It is an arithmetic number, because the mean of its divisors is an integer number (5191145100).

Almost surely, 2^121045113210 is an apocalyptic number.

121045113210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121045113210 is an abundant number, since it is smaller than the sum of its proper divisors (211188173190).

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

121045113210 is a wasteful number, since it uses less digits than its factorization.

121045113210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388615.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 121045113210 its reverse (12311540121), we get a palindrome (133356653331).

The spelling of 121045113210 in words is "one hundred twenty-one billion, forty-five million, one hundred thirteen thousand, two hundred ten".