22121545411 has 4 divisors (see below), whose sum is σ = 25281766192. Its totient is φ = 18961324632.

The previous prime is 22121545399. The next prime is 22121545421. The reversal of 22121545411 is 11454512122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11454512122 = 2 ⋅5727256061.

It is a cyclic number.

It is not a de Polignac number, because 22121545411 - 2¹³ = 22121537219 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22121545411.

It is not an unprimeable number, because it can be changed into a prime (22121545421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1580110380 + ... + 1580110393.

It is an arithmetic number, because the mean of its divisors is an integer number (6320441548).

Almost surely, 2^22121545411 is an apocalyptic number.

22121545411 is a deficient number, since it is larger than the sum of its proper divisors (3160220781).

22121545411 is an equidigital number, since it uses as much as digits as its factorization.

22121545411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3160220780.

The product of its digits is 3200, while the sum is 28.

The spelling of 22121545411 in words is "twenty-two billion, one hundred twenty-one million, five hundred forty-five thousand, four hundred eleven".