1011322122321 has 16 divisors (see below), whose sum is σ = 1582712614784. Its totient is φ = 562279480704.

The previous prime is 1011322122301. The next prime is 1011322122323. The reversal of 1011322122321 is 1232212231101.

It is not a de Polignac number, because 1011322122321 - 2²⁹ = 1010785251409 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1011322122323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 650785660 + ... + 650787213.

It is an arithmetic number, because the mean of its divisors is an integer number (98919538424).

Almost surely, 2^{1011322122321} is an apocalyptic number.

It is an amenable number.

1011322122321 is a deficient number, since it is larger than the sum of its proper divisors (571390492463).

1011322122321 is a wasteful number, since it uses less digits than its factorization.

1011322122321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301572920.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1011322122321 its reverse (1232212231101), we get a palindrome (2243534353422).

The spelling of 1011322122321 in words is "one trillion, eleven billion, three hundred twenty-two million, one hundred twenty-two thousand, three hundred twenty-one".