121771106044 has 48 divisors (see below), whose sum is σ = 245994997248. Its totient is φ = 51662386368.

The previous prime is 121771106003. The next prime is 121771106047. The reversal of 121771106044 is 440601177121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121771106047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10598727 + ... + 10610209.

It is an arithmetic number, because the mean of its divisors is an integer number (5124895776).

Almost surely, 2^121771106044 is an apocalyptic number.

121771106044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

121771106044 is an abundant number, since it is smaller than the sum of its proper divisors (124223891204).

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

121771106044 is a wasteful number, since it uses less digits than its factorization.

121771106044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15274 (or 15272 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 34.

The spelling of 121771106044 in words is "one hundred twenty-one billion, seven hundred seventy-one million, one hundred six thousand, forty-four".