121427020157502 has 32 divisors (see below), whose sum is σ = 254122124405760. Its totient is φ = 38633431066560.

The previous prime is 121427020157473. The next prime is 121427020157503. The reversal of 121427020157502 is 205751020724121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121427020157503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4471448352 + ... + 4471475507.

It is an arithmetic number, because the mean of its divisors is an integer number (7941316387680).

Almost surely, 2^{121427020157502} is an apocalyptic number.

121427020157502 is an abundant number, since it is smaller than the sum of its proper divisors (132695104248258).

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

121427020157502 is a wasteful number, since it uses less digits than its factorization.

121427020157502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8942923968.

The product of its (nonzero) digits is 78400, while the sum is 39.

The spelling of 121427020157502 in words is "one hundred twenty-one trillion, four hundred twenty-seven billion, twenty million, one hundred fifty-seven thousand, five hundred two".