121761560252 has 12 divisors (see below), whose sum is σ = 213138523416. Its totient is φ = 60864839280.

The previous prime is 121761560251. The next prime is 121761560269. The reversal of 121761560252 is 252065167121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121761560251) 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, 3968018 + ... + 3998585.

It is an arithmetic number, because the mean of its divisors is an integer number (17761543618).

Almost surely, 2^121761560252 is an apocalyptic number.

It is an amenable number.

121761560252 is a deficient number, since it is larger than the sum of its proper divisors (91376963164).

121761560252 is a wasteful number, since it uses less digits than its factorization.

121761560252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7970428 (or 7970426 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 38.

The spelling of 121761560252 in words is "one hundred twenty-one billion, seven hundred sixty-one million, five hundred sixty thousand, two hundred fifty-two".