10311422220 has 144 divisors (see below), whose sum is σ = 34155287712. Its totient is φ = 2497259520.

The previous prime is 10311422203. The next prime is 10311422263. The reversal of 10311422220 is 2222411301.

It is a happy number.

10311422220 is a `hidden beast` number, since 10 + 3 + 11 + 422 + 220 = 666.

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 = 10311422193 and 10311422202.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2716644 + ... + 2720436.

It is an arithmetic number, because the mean of its divisors is an integer number (237189498).

Almost surely, 2^10311422220 is an apocalyptic number.

10311422220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10311422220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17077643856).

10311422220 is an abundant number, since it is smaller than the sum of its proper divisors (23843865492).

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

10311422220 is a wasteful number, since it uses less digits than its factorization.

10311422220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5192 (or 5187 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 10311422220 its reverse (2222411301), we get a palindrome (12533833521).

The spelling of 10311422220 in words is "ten billion, three hundred eleven million, four hundred twenty-two thousand, two hundred twenty".