22121232001123 has 32 divisors (see below), whose sum is σ = 24136895692800. Its totient is φ = 20210275008000.

The previous prime is 22121232001093. The next prime is 22121232001153. The reversal of 22121232001123 is 32110023212122.

It is an interprime number because it is at equal distance from previous prime (22121232001093) and next prime (22121232001153).

It is a cyclic number.

It is not a de Polignac number, because 22121232001123 - 2³⁷ = 21983793047651 is a prime.

It is a super-2 number, since 2×22121232001123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22121232001094 and 22121232001103.

It is not an unprimeable number, because it can be changed into a prime (22121232001153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23817118 + ... + 24728476.

It is an arithmetic number, because the mean of its divisors is an integer number (754277990400).

Almost surely, 2^{22121232001123} is an apocalyptic number.

22121232001123 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

22121232001123 is a deficient number, since it is larger than the sum of its proper divisors (2015663691677).

22121232001123 is a wasteful number, since it uses less digits than its factorization.

22121232001123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911803.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 22121232001123 its reverse (32110023212122), we get a palindrome (54231255213245).

The spelling of 22121232001123 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred thirty-two million, one thousand, one hundred twenty-three".