120212112157 has 2 divisors, whose sum is σ = 120212112158. Its totient is φ = 120212112156.

The previous prime is 120212112089. The next prime is 120212112173. The reversal of 120212112157 is 751211212021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115650325476 + 4561786681 = 340074^2 + 67541^2 .

It is a cyclic number.

It is not a de Polignac number, because 120212112157 - 2²⁷ = 120077894429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120212112457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60106056078 + 60106056079.

It is an arithmetic number, because the mean of its divisors is an integer number (60106056079).

Almost surely, 2^120212112157 is an apocalyptic number.

It is an amenable number.

120212112157 is a deficient number, since it is larger than the sum of its proper divisors (1).

120212112157 is an equidigital number, since it uses as much as digits as its factorization.

120212112157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 25.

Adding to 120212112157 its reverse (751211212021), we get a palindrome (871423324178).

The spelling of 120212112157 in words is "one hundred twenty billion, two hundred twelve million, one hundred twelve thousand, one hundred fifty-seven".