2124220157 has 2 divisors, whose sum is σ = 2124220158. Its totient is φ = 2124220156.

The previous prime is 2124220093. The next prime is 2124220171. The reversal of 2124220157 is 7510224212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1796827321 + 327392836 = 42389^2 + 18094^2 .

It is a cyclic number.

It is not a de Polignac number, because 2124220157 - 2⁶ = 2124220093 is a prime.

It is a super-2 number, since 2×2124220157² = 9024622550810209298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2124120157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1062110078 + 1062110079.

It is an arithmetic number, because the mean of its divisors is an integer number (1062110079).

Almost surely, 2^2124220157 is an apocalyptic number.

It is an amenable number.

2124220157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2124220157 is an equidigital number, since it uses as much as digits as its factorization.

2124220157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 2124220157 is about 46089.2629253278. The cubic root of 2124220157 is about 1285.4835058160.

Adding to 2124220157 its reverse (7510224212), we get a palindrome (9634444369).

The spelling of 2124220157 in words is "two billion, one hundred twenty-four million, two hundred twenty thousand, one hundred fifty-seven".