22011126431 has 16 divisors (see below), whose sum is σ = 27793373184. Its totient is φ = 16984834944.

The previous prime is 22011126419. The next prime is 22011126437. The reversal of 22011126431 is 13462111022.

It is not a de Polignac number, because 22011126431 - 2¹⁴ = 22011110047 is a prime.

It is a super-2 number, since 2×22011126431² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22011126397 and 22011126406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011126437) 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, 4018295 + ... + 4023768.

It is an arithmetic number, because the mean of its divisors is an integer number (1737085824).

Almost surely, 2^22011126431 is an apocalyptic number.

22011126431 is a deficient number, since it is larger than the sum of its proper divisors (5782246753).

22011126431 is a wasteful number, since it uses less digits than its factorization.

22011126431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8042110.

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

Adding to 22011126431 its reverse (13462111022), we get a palindrome (35473237453).

The spelling of 22011126431 in words is "twenty-two billion, eleven million, one hundred twenty-six thousand, four hundred thirty-one".