121620383241189 has 64 divisors (see below), whose sum is σ = 192637248620544. Its totient is φ = 66801267945216.

The previous prime is 121620383241131. The next prime is 121620383241193. The reversal of 121620383241189 is 981142383026121.

It is not a de Polignac number, because 121620383241189 - 2⁹ = 121620383240677 is a prime.

It is a super-2 number, since 2×121620383241189² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121620383241109) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2479847902 + ... + 2479896944.

It is an arithmetic number, because the mean of its divisors is an integer number (3009957009696).

Almost surely, 2^{121620383241189} is an apocalyptic number.

It is an amenable number.

121620383241189 is a deficient number, since it is larger than the sum of its proper divisors (71016865379355).

121620383241189 is a wasteful number, since it uses less digits than its factorization.

121620383241189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87626.

The product of its (nonzero) digits is 995328, while the sum is 51.

The spelling of 121620383241189 in words is "one hundred twenty-one trillion, six hundred twenty billion, three hundred eighty-three million, two hundred forty-one thousand, one hundred eighty-nine".