22011001123031 has 8 divisors (see below), whose sum is σ = 23314617353664. Its totient is φ = 20708368387840.

The previous prime is 22011001123019. The next prime is 22011001123039. The reversal of 22011001123031 is 13032110011022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22011001123031 - 2³⁰ = 22009927381207 is a prime.

It is a super-2 number, since 2×22011001123031² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011001123039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245827775 + ... + 245917296.

It is an arithmetic number, because the mean of its divisors is an integer number (2914327169208).

Almost surely, 2^{22011001123031} is an apocalyptic number.

22011001123031 is a deficient number, since it is larger than the sum of its proper divisors (1303616230633).

22011001123031 is a wasteful number, since it uses less digits than its factorization.

22011001123031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491747721.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 22011001123031 its reverse (13032110011022), we get a palindrome (35043111134053).

The spelling of 22011001123031 in words is "twenty-two trillion, eleven billion, one million, one hundred twenty-three thousand, thirty-one".