10213122222 has 64 divisors (see below), whose sum is σ = 23480089920. Its totient is φ = 3288384000.

The previous prime is 10213122211. The next prime is 10213122277. The reversal of 10213122222 is 22222131201.

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 = 10213122195 and 10213122204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 200778 + ... + 246450.

It is an arithmetic number, because the mean of its divisors is an integer number (366876405).

Almost surely, 2^10213122222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10213122222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11740044960).

10213122222 is an abundant number, since it is smaller than the sum of its proper divisors (13266967698).

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

10213122222 is a wasteful number, since it uses less digits than its factorization.

10213122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45826 (or 45820 counting only the distinct ones).

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

Adding to 10213122222 its reverse (22222131201), we get a palindrome (32435253423).

The spelling of 10213122222 in words is "ten billion, two hundred thirteen million, one hundred twenty-two thousand, two hundred twenty-two".