1022100008978 has 16 divisors (see below), whose sum is σ = 1556671090680. Its totient is φ = 503232339456.

The previous prime is 1022100008977. The next prime is 1022100008981. The reversal of 1022100008978 is 8798000012201.

It can be written as a sum of positive squares in 4 ways, for example, as 921932189929 + 100167819049 = 960173^2 + 316493^2 .

It is not an unprimeable number, because it can be changed into a prime (1022100008971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5583083 + ... + 5763246.

Almost surely, 2^{1022100008978} is an apocalyptic number.

1022100008978 is a deficient number, since it is larger than the sum of its proper divisors (534571081702).

1022100008978 is a wasteful number, since it uses less digits than its factorization.

1022100008978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11347021.

The product of its (nonzero) digits is 16128, while the sum is 38.

The spelling of 1022100008978 in words is "one trillion, twenty-two billion, one hundred million, eight thousand, nine hundred seventy-eight".