121773274261 has 8 divisors (see below), whose sum is σ = 122517944640. Its totient is φ = 121028788608.

The previous prime is 121773274241. The next prime is 121773274321. The reversal of 121773274261 is 162472377121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121773274261 - 2¹¹ = 121773272213 is a prime.

It is a super-2 number, since 2×121773274261² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121773274241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1417350 + ... + 1500808.

It is an arithmetic number, because the mean of its divisors is an integer number (15314743080).

Almost surely, 2^121773274261 is an apocalyptic number.

It is an amenable number.

121773274261 is a deficient number, since it is larger than the sum of its proper divisors (744670379).

121773274261 is an equidigital number, since it uses as much as digits as its factorization.

121773274261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92363.

The product of its digits is 197568, while the sum is 43.

The spelling of 121773274261 in words is "one hundred twenty-one billion, seven hundred seventy-three million, two hundred seventy-four thousand, two hundred sixty-one".