1022402077321 has 3 divisors (see below), whose sum is σ = 1022403088461. Its totient is φ = 1022401066182.

The previous prime is 1022402077283. The next prime is 1022402077381. The reversal of 1022402077321 is 1237702042201.

The square root of 1022402077321 is 1011139.

It is a perfect power (a square), and thus also a powerful number.

1022402077321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 1022402077321 - 2⁹ = 1022402076809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1022402077381) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 505570 + ... + 1516708.

It is an arithmetic number, because the mean of its divisors is an integer number (340801029487).

Almost surely, 2^{1022402077321} is an apocalyptic number.

1022402077321 is the 1011139-th square number.

1022402077321 is the 505570-th centered octagonal number.

It is an amenable number.

1022402077321 is a deficient number, since it is larger than the sum of its proper divisors (1011140).

1022402077321 is an frugal number, since it uses more digits than its factorization.

1022402077321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022278 (or 1011139 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The spelling of 1022402077321 in words is "one trillion, twenty-two billion, four hundred two million, seventy-seven thousand, three hundred twenty-one".