120121477 has 16 divisors (see below), whose sum is σ = 144835200. Its totient is φ = 97320960.

The previous prime is 120121471. The next prime is 120121487. The reversal of 120121477 is 774121021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120121477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120121471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84549 + ... + 85957.

It is an arithmetic number, because the mean of its divisors is an integer number (9052200).

Almost surely, 2^120121477 is an apocalyptic number.

It is an amenable number.

120121477 is a deficient number, since it is larger than the sum of its proper divisors (24713723).

120121477 is a wasteful number, since it uses less digits than its factorization.

120121477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2076.

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 120121477 is about 10959.9943886847. The cubic root of 120121477 is about 493.4087965378.

Adding to 120121477 its reverse (774121021), we get a palindrome (894242498).

The spelling of 120121477 in words is "one hundred twenty million, one hundred twenty-one thousand, four hundred seventy-seven".