220022001231 has 4 divisors (see below), whose sum is σ = 293362668312. Its totient is φ = 146681334152.

The previous prime is 220022001223. The next prime is 220022001293. The reversal of 220022001231 is 132100220022.

It is a happy number.

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 220022001231 - 2³ = 220022001223 is a prime.

It is a super-2 number, since 2×220022001231² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 220022001231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220022001431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36670333536 + ... + 36670333541.

It is an arithmetic number, because the mean of its divisors is an integer number (73340667078).

Almost surely, 2^220022001231 is an apocalyptic number.

220022001231 is a deficient number, since it is larger than the sum of its proper divisors (73340667081).

220022001231 is an equidigital number, since it uses as much as digits as its factorization.

220022001231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73340667080.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 220022001231 its reverse (132100220022), we get a palindrome (352122221253).

The spelling of 220022001231 in words is "two hundred twenty billion, twenty-two million, one thousand, two hundred thirty-one".