121022541 has 12 divisors (see below), whose sum is σ = 185093532. Its totient is φ = 75935616.

The previous prime is 121022521. The next prime is 121022557. The reversal of 121022541 is 145220121.

121022541 is a `hidden beast` number, since 121 + 0 + 2 + 2 + 541 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 112148100 + 8874441 = 10590^2 + 2979^2 .

It is not a de Polignac number, because 121022541 - 2⁶ = 121022477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121022521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 395346 + ... + 395651.

It is an arithmetic number, because the mean of its divisors is an integer number (15424461).

Almost surely, 2^121022541 is an apocalyptic number.

It is an amenable number.

121022541 is a deficient number, since it is larger than the sum of its proper divisors (64070991).

121022541 is a wasteful number, since it uses less digits than its factorization.

121022541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791020 (or 791017 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 121022541 is about 11001.0245431960. The cubic root of 121022541 is about 494.6394558496.

Adding to 121022541 its reverse (145220121), we get a palindrome (266242662).

The spelling of 121022541 in words is "one hundred twenty-one million, twenty-two thousand, five hundred forty-one".