20012223331 has 8 divisors (see below), whose sum is σ = 20080090224. Its totient is φ = 19944444960.

The previous prime is 20012223289. The next prime is 20012223409. The reversal of 20012223331 is 13332221002.

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 20012223331 - 2²⁷ = 19878005603 is a prime.

It is a super-2 number, since 2×20012223331² (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 = 20012223299 and 20012223308.

It is not an unprimeable number, because it can be changed into a prime (20012220331) 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, 447516 + ... + 490198.

It is an arithmetic number, because the mean of its divisors is an integer number (2510011278).

Almost surely, 2^20012223331 is an apocalyptic number.

20012223331 is a deficient number, since it is larger than the sum of its proper divisors (67866893).

20012223331 is a wasteful number, since it uses less digits than its factorization.

20012223331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44261.

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

Adding to 20012223331 its reverse (13332221002), we get a palindrome (33344444333).

The spelling of 20012223331 in words is "twenty billion, twelve million, two hundred twenty-three thousand, three hundred thirty-one".