1022021111954 has 16 divisors (see below), whose sum is σ = 1572968017656. Its totient is φ = 497738841600.

The previous prime is 1022021111953. The next prime is 1022021112043. The reversal of 1022021111954 is 4591111202201.

It is a happy number.

1022021111954 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 275651250625 + 746369861329 = 525025^2 + 863927^2 .

It is not an unprimeable number, because it can be changed into a prime (1022021111953) 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, 10049627 + ... + 10150814.

Almost surely, 2^{1022021111954} is an apocalyptic number.

1022021111954 is a deficient number, since it is larger than the sum of its proper divisors (550946905702).

1022021111954 is a wasteful number, since it uses less digits than its factorization.

1022021111954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20201101.

The product of its (nonzero) digits is 1440, while the sum is 29.

The spelling of 1022021111954 in words is "one trillion, twenty-two billion, twenty-one million, one hundred eleven thousand, nine hundred fifty-four".