157422000121 has 8 divisors (see below), whose sum is σ = 161656238304. Its totient is φ = 153213819360.

The previous prime is 157422000107. The next prime is 157422000163. The reversal of 157422000121 is 121000224751.

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 157422000121 - 2⁵ = 157422000089 is a prime.

It is a super-2 number, since 2×157422000121² (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 (157422007121) 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, 6502111 + ... + 6526276.

It is an arithmetic number, because the mean of its divisors is an integer number (20207029788).

Almost surely, 2^157422000121 is an apocalyptic number.

157422000121 is the 212080-th centered heptagonal number.

It is an amenable number.

157422000121 is a deficient number, since it is larger than the sum of its proper divisors (4234238183).

157422000121 is a wasteful number, since it uses less digits than its factorization.

157422000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13028711.

The product of its (nonzero) digits is 1120, while the sum is 25.

Adding to 157422000121 its reverse (121000224751), we get a palindrome (278422224872).

The spelling of 157422000121 in words is "one hundred fifty-seven billion, four hundred twenty-two million, one hundred twenty-one", and thus it is an aban number.