1021662122 has 16 divisors (see below), whose sum is σ = 1660149960. Its totient is φ = 471534336.

The previous prime is 1021662119. The next prime is 1021662127. The reversal of 1021662122 is 2212661201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 923521 + 1020738601 = 961^2 + 31949^2 .

It is not an unprimeable number, because it can be changed into a prime (1021662127) 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, 111863 + ... + 120650.

Almost surely, 2^1021662122 is an apocalyptic number.

1021662122 is a deficient number, since it is larger than the sum of its proper divisors (638487838).

1021662122 is an equidigital number, since it uses as much as digits as its factorization.

1021662122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232554 (or 232528 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1021662122 is about 31963.4497825250. The cubic root of 1021662122 is about 1007.1691872618.

The spelling of 1021662122 in words is "one billion, twenty-one million, six hundred sixty-two thousand, one hundred twenty-two".