121772441883 has 4 divisors (see below), whose sum is σ = 162363255848. Its totient is φ = 81181627920.

The previous prime is 121772441827. The next prime is 121772441899. The reversal of 121772441883 is 388144277121.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 121772441883 - 2¹⁴ = 121772425499 is a prime.

It is a super-2 number, since 2×121772441883² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121772441803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20295406978 + ... + 20295406983.

It is an arithmetic number, because the mean of its divisors is an integer number (40590813962).

Almost surely, 2^121772441883 is an apocalyptic number.

121772441883 is a deficient number, since it is larger than the sum of its proper divisors (40590813965).

121772441883 is an equidigital number, since it uses as much as digits as its factorization.

121772441883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40590813964.

The product of its digits is 602112, while the sum is 48.

The spelling of 121772441883 in words is "one hundred twenty-one billion, seven hundred seventy-two million, four hundred forty-one thousand, eight hundred eighty-three".