10223312220 has 72 divisors (see below), whose sum is σ = 33829876080. Its totient is φ = 2478378240.

The previous prime is 10223312201. The next prime is 10223312227. The reversal of 10223312220 is 2221332201.

It is a super-2 number, since 2×10223312220² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 10223312193 and 10223312202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10223312227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2579665 + ... + 2583624.

It is an arithmetic number, because the mean of its divisors is an integer number (469859390).

Almost surely, 2^10223312220 is an apocalyptic number.

10223312220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10223312220 is an abundant number, since it is smaller than the sum of its proper divisors (23606563860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10223312220 is a wasteful number, since it uses less digits than its factorization.

10223312220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5163315 (or 5163310 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 10223312220 its reverse (2221332201), we get a palindrome (12444644421).

The spelling of 10223312220 in words is "ten billion, two hundred twenty-three million, three hundred twelve thousand, two hundred twenty".