121090360885 has 16 divisors (see below), whose sum is σ = 165691065456. Its totient is φ = 84160539648.

The previous prime is 121090360883. The next prime is 121090360949. The reversal of 121090360885 is 588063090121.

It can be written as a sum of positive squares in 8 ways, for example, as 1535542596 + 119554818289 = 39186^2 + 345767^2 .

It is a cyclic number.

It is not a de Polignac number, because 121090360885 - 2¹ = 121090360883 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 (121090360883) 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, 54790914 + ... + 54793123.

It is an arithmetic number, because the mean of its divisors is an integer number (10355691591).

Almost surely, 2^121090360885 is an apocalyptic number.

It is an amenable number.

121090360885 is a deficient number, since it is larger than the sum of its proper divisors (44600704571).

121090360885 is a wasteful number, since it uses less digits than its factorization.

121090360885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109584072.

The product of its (nonzero) digits is 103680, while the sum is 43.

The spelling of 121090360885 in words is "one hundred twenty-one billion, ninety million, three hundred sixty thousand, eight hundred eighty-five".