22012023331 has 4 divisors (see below), whose sum is σ = 22012756200. Its totient is φ = 22011290464.

The previous prime is 22012023307. The next prime is 22012023337. The reversal of 22012023331 is 13332021022.

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 22012023331 - 2¹³ = 22012015139 is a prime.

It is a super-2 number, since 2×22012023331² (a number of 21 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 = 22012023299 and 22012023308.

It is not an unprimeable number, because it can be changed into a prime (22012023337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319366 + ... + 382123.

It is an arithmetic number, because the mean of its divisors is an integer number (5503189050).

Almost surely, 2^22012023331 is an apocalyptic number.

22012023331 is a deficient number, since it is larger than the sum of its proper divisors (732869).

22012023331 is an equidigital number, since it uses as much as digits as its factorization.

22012023331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732868.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 22012023331 its reverse (13332021022), we get a palindrome (35344044353).

The spelling of 22012023331 in words is "twenty-two billion, twelve million, twenty-three thousand, three hundred thirty-one".