121270394261 has 8 divisors (see below), whose sum is σ = 124122472320. Its totient is φ = 118419763392.

The previous prime is 121270394233. The next prime is 121270394269. The reversal of 121270394261 is 162493072121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121270394261 is a prime.

It is a super-2 number, since 2×121270394261² (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 (121270394269) 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, 191300 + ... + 528333.

It is an arithmetic number, because the mean of its divisors is an integer number (15515309040).

Almost surely, 2^121270394261 is an apocalyptic number.

It is an amenable number.

121270394261 is a deficient number, since it is larger than the sum of its proper divisors (2852078059).

121270394261 is an equidigital number, since it uses as much as digits as its factorization.

121270394261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723595.

The product of its (nonzero) digits is 36288, while the sum is 38.

The spelling of 121270394261 in words is "one hundred twenty-one billion, two hundred seventy million, three hundred ninety-four thousand, two hundred sixty-one".