121771332140 has 12 divisors (see below), whose sum is σ = 255719797536. Its totient is φ = 48708532848.

The previous prime is 121771332103. The next prime is 121771332143. The reversal of 121771332140 is 41233177121.

It is a junction number, because it is equal to n+sod(n) for n = 121771332097 and 121771332106.

It is not an unprimeable number, because it can be changed into a prime (121771332143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3044283284 + ... + 3044283323.

It is an arithmetic number, because the mean of its divisors is an integer number (21309983128).

Almost surely, 2^121771332140 is an apocalyptic number.

121771332140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121771332140 is an abundant number, since it is smaller than the sum of its proper divisors (133948465396).

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

121771332140 is a wasteful number, since it uses less digits than its factorization.

121771332140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6088566616 (or 6088566614 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 32.

The spelling of 121771332140 in words is "one hundred twenty-one billion, seven hundred seventy-one million, three hundred thirty-two thousand, one hundred forty".