1022721154401 has 8 divisors (see below), whose sum is σ = 1435398111520. Its totient is φ = 645929150112.

The previous prime is 1022721154393. The next prime is 1022721154421. The reversal of 1022721154401 is 1044511272201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1022721154401 - 2³ = 1022721154393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1022721154421) 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, 8971238140 + ... + 8971238253.

It is an arithmetic number, because the mean of its divisors is an integer number (179424763940).

Almost surely, 2^{1022721154401} is an apocalyptic number.

It is an amenable number.

1022721154401 is a deficient number, since it is larger than the sum of its proper divisors (412676957119).

1022721154401 is a wasteful number, since it uses less digits than its factorization.

1022721154401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17942476415.

The product of its (nonzero) digits is 4480, while the sum is 30.

The spelling of 1022721154401 in words is "one trillion, twenty-two billion, seven hundred twenty-one million, one hundred fifty-four thousand, four hundred one".