12202788157 has 12 divisors (see below), whose sum is σ = 14196886716. Its totient is φ = 10458201600.

The previous prime is 12202788121. The next prime is 12202788163. The reversal of 12202788157 is 75188720221.

It can be written as a sum of positive squares in 2 ways, for example, as 7241839801 + 4960948356 = 85099^2 + 70434^2 .

It is a de Polignac number, because none of the positive numbers 2^k-12202788157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202788107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 697003 + ... + 714295.

It is an arithmetic number, because the mean of its divisors is an integer number (1183073893).

Almost surely, 2^12202788157 is an apocalyptic number.

It is an amenable number.

12202788157 is a deficient number, since it is larger than the sum of its proper divisors (1994098559).

12202788157 is a wasteful number, since it uses less digits than its factorization.

12202788157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31708 (or 31701 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 43.

The spelling of 12202788157 in words is "twelve billion, two hundred two million, seven hundred eighty-eight thousand, one hundred fifty-seven".