700122121 has 4 divisors (see below), whose sum is σ = 702140112. Its totient is φ = 698104132.

The previous prime is 700122091. The next prime is 700122131. The reversal of 700122121 is 121221007.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 121221007 = 19 ⋅6380053.

It is a cyclic number.

It is not a de Polignac number, because 700122121 - 2⁷ = 700121993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 700122095 and 700122104.

It is not an unprimeable number, because it can be changed into a prime (700122131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1008475 + ... + 1009168.

It is an arithmetic number, because the mean of its divisors is an integer number (175535028).

Almost surely, 2^700122121 is an apocalyptic number.

It is an amenable number.

700122121 is a deficient number, since it is larger than the sum of its proper divisors (2017991).

700122121 is a wasteful number, since it uses less digits than its factorization.

700122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2017990.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 700122121 is about 26459.8208799682. The cubic root of 700122121 is about 887.9556328948.

Adding to 700122121 its reverse (121221007), we get a palindrome (821343128).

The spelling of 700122121 in words is "seven hundred million, one hundred twenty-two thousand, one hundred twenty-one".