121635245780572 has 24 divisors (see below), whose sum is σ = 213412119691680. Its totient is φ = 60660359184960.

The previous prime is 121635245780467. The next prime is 121635245780591. The reversal of 121635245780572 is 275087542536121.

121635245780572 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×121635245780572² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108457033 + ... + 109572799.

It is an arithmetic number, because the mean of its divisors is an integer number (8892171653820).

Almost surely, 2^{121635245780572} is an apocalyptic number.

It is an amenable number.

121635245780572 is a deficient number, since it is larger than the sum of its proper divisors (91776873911108).

121635245780572 is a wasteful number, since it uses less digits than its factorization.

121635245780572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186221 (or 1186219 counting only the distinct ones).

The product of its (nonzero) digits is 28224000, while the sum is 58.

The spelling of 121635245780572 in words is "one hundred twenty-one trillion, six hundred thirty-five billion, two hundred forty-five million, seven hundred eighty thousand, five hundred seventy-two".