22213121021123 has 4 divisors (see below), whose sum is σ = 22213411833768. Its totient is φ = 22212830208480.

The previous prime is 22213121021101. The next prime is 22213121021153. The reversal of 22213121021123 is 32112012131222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22213121021123 - 2¹⁰ = 22213121020099 is a prime.

It is a super-2 number, since 2×22213121021123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22213121021153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145291718 + ... + 145444523.

It is an arithmetic number, because the mean of its divisors is an integer number (5553352958442).

Almost surely, 2^{22213121021123} is an apocalyptic number.

22213121021123 is a deficient number, since it is larger than the sum of its proper divisors (290812645).

22213121021123 is an equidigital number, since it uses as much as digits as its factorization.

22213121021123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290812644.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 22213121021123 its reverse (32112012131222), we get a palindrome (54325133152345).

The spelling of 22213121021123 in words is "twenty-two trillion, two hundred thirteen billion, one hundred twenty-one million, twenty-one thousand, one hundred twenty-three".