121921472267 has 8 divisors (see below), whose sum is σ = 146672448000. Its totient is φ = 99003902184.

The previous prime is 121921472263. The next prime is 121921472291. The reversal of 121921472267 is 762274129121.

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 121921472267 - 2² = 121921472263 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121921472263) 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, 458351267 + ... + 458351532.

It is an arithmetic number, because the mean of its divisors is an integer number (18334056000).

Almost surely, 2^121921472267 is an apocalyptic number.

121921472267 is a deficient number, since it is larger than the sum of its proper divisors (24750975733).

121921472267 is an equidigital number, since it uses as much as digits as its factorization.

121921472267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916702825.

The product of its digits is 169344, while the sum is 44.

The spelling of 121921472267 in words is "one hundred twenty-one billion, nine hundred twenty-one million, four hundred seventy-two thousand, two hundred sixty-seven".