1022021111953 has 2 divisors, whose sum is σ = 1022021111954. Its totient is φ = 1022021111952.

The previous prime is 1022021111933. The next prime is 1022021112043. The reversal of 1022021111953 is 3591111202201.

1022021111953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 642525686929 + 379495425024 = 801577^2 + 616032^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022021111953 - 2²¹ = 1022019014801 is a prime.

It is not a weakly prime, because it can be changed into another prime (1022021111933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511010555976 + 511010555977.

It is an arithmetic number, because the mean of its divisors is an integer number (511010555977).

Almost surely, 2^{1022021111953} is an apocalyptic number.

It is an amenable number.

1022021111953 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022021111953 is an equidigital number, since it uses as much as digits as its factorization.

1022021111953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 28.

The spelling of 1022021111953 in words is "one trillion, twenty-two billion, twenty-one million, one hundred eleven thousand, nine hundred fifty-three".