70122122221121 has 4 divisors (see below), whose sum is σ = 70128462961200. Its totient is φ = 70115781481044.

The previous prime is 70122122221037. The next prime is 70122122221163. The reversal of 70122122221121 is 12112222122107.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 70122122221121 - 2³⁰ = 70121048479297 is a prime.

It is a super-2 number, since 2×70122122221121² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70122122227121) 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, 3170353451 + ... + 3170375568.

It is an arithmetic number, because the mean of its divisors is an integer number (17532115740300).

Almost surely, 2^{70122122221121} is an apocalyptic number.

It is an amenable number.

70122122221121 is a deficient number, since it is larger than the sum of its proper divisors (6340740079).

70122122221121 is a wasteful number, since it uses less digits than its factorization.

70122122221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6340740078.

The product of its (nonzero) digits is 896, while the sum is 26.

Adding to 70122122221121 its reverse (12112222122107), we get a palindrome (82234344343228).

The spelling of 70122122221121 in words is "seventy trillion, one hundred twenty-two billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred twenty-one".