1202101988 has 24 divisors (see below), whose sum is σ = 2134648152. Its totient is φ = 592257024.

The previous prime is 1202101987. The next prime is 1202102021. The reversal of 1202101988 is 8891012021.

It can be written as a sum of positive squares in 4 ways, for example, as 28217344 + 1173884644 = 5312^2 + 34262^2 .

It is not an unprimeable number, because it can be changed into a prime (1202101987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83756 + ... + 97052.

It is an arithmetic number, because the mean of its divisors is an integer number (88943673).

Almost surely, 2^1202101988 is an apocalyptic number.

It is an amenable number.

1202101988 is a deficient number, since it is larger than the sum of its proper divisors (932546164).

1202101988 is a wasteful number, since it uses less digits than its factorization.

1202101988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13631 (or 13629 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 32.

The square root of 1202101988 is about 34671.3424603086. The cubic root of 1202101988 is about 1063.2786782397.

The spelling of 1202101988 in words is "one billion, two hundred two million, one hundred one thousand, nine hundred eighty-eight".