33222210231 has 32 divisors (see below), whose sum is σ = 53143142400. Its totient is φ = 18060323040.

The previous prime is 33222210221. The next prime is 33222210257. The reversal of 33222210231 is 13201222233.

It is a happy number.

It is not a de Polignac number, because 33222210231 - 2⁹ = 33222209719 is a prime.

It is a super-2 number, since 2×33222210231² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 33222210198 and 33222210207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33222210211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 394071 + ... + 470888.

It is an arithmetic number, because the mean of its divisors is an integer number (1660723200).

Almost surely, 2^33222210231 is an apocalyptic number.

33222210231 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

33222210231 is a deficient number, since it is larger than the sum of its proper divisors (19920932169).

33222210231 is a wasteful number, since it uses less digits than its factorization.

33222210231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865059.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 33222210231 its reverse (13201222233), we get a palindrome (46423432464).

The spelling of 33222210231 in words is "thirty-three billion, two hundred twenty-two million, two hundred ten thousand, two hundred thirty-one".