1011022199977 has 2 divisors, whose sum is σ = 1011022199978. Its totient is φ = 1011022199976.

The previous prime is 1011022199959. The next prime is 1011022200017. The reversal of 1011022199977 is 7799912201101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 800418304921 + 210603895056 = 894661^2 + 458916^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011022199977 - 2¹⁹ = 1011021675689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1011022199977.

It is not a weakly prime, because it can be changed into another prime (1011022199777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505511099988 + 505511099989.

It is an arithmetic number, because the mean of its divisors is an integer number (505511099989).

Almost surely, 2^{1011022199977} is an apocalyptic number.

It is an amenable number.

1011022199977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011022199977 is an equidigital number, since it uses as much as digits as its factorization.

1011022199977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 142884, while the sum is 49.

The spelling of 1011022199977 in words is "one trillion, eleven billion, twenty-two million, one hundred ninety-nine thousand, nine hundred seventy-seven".