1022220915851 has 2 divisors, whose sum is σ = 1022220915852. Its totient is φ = 1022220915850.

The previous prime is 1022220915847. The next prime is 1022220915857. The reversal of 1022220915851 is 1585190222201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1022220915851 - 2² = 1022220915847 is a prime.

It is not a weakly prime, because it can be changed into another prime (1022220915857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511110457925 + 511110457926.

It is an arithmetic number, because the mean of its divisors is an integer number (511110457926).

Almost surely, 2^{1022220915851} is an apocalyptic number.

1022220915851 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022220915851 is an equidigital number, since it uses as much as digits as its factorization.

1022220915851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 38.

The spelling of 1022220915851 in words is "one trillion, twenty-two billion, two hundred twenty million, nine hundred fifteen thousand, eight hundred fifty-one".