121452200251 has 8 divisors (see below), whose sum is σ = 121588096464. Its totient is φ = 121316351520.

The previous prime is 121452200203. The next prime is 121452200279. The reversal of 121452200251 is 152002254121.

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 121452200251 - 2²⁷ = 121317982523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121452200291) 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, 7847661 + ... + 7863121.

It is an arithmetic number, because the mean of its divisors is an integer number (15198512058).

Almost surely, 2^121452200251 is an apocalyptic number.

121452200251 is a deficient number, since it is larger than the sum of its proper divisors (135896213).

121452200251 is a wasteful number, since it uses less digits than its factorization.

121452200251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23741.

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 121452200251 its reverse (152002254121), we get a palindrome (273454454372).

The spelling of 121452200251 in words is "one hundred twenty-one billion, four hundred fifty-two million, two hundred thousand, two hundred fifty-one".