210222211122 has 96 divisors (see below), whose sum is σ = 568437367680. Its totient is φ = 54548904960.

The previous prime is 210222211091. The next prime is 210222211139. The reversal of 210222211122 is 221112222012.

It is a happy number.

210222211122 is a `hidden beast` number, since 210 + 222 + 211 + 1 + 22 = 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 = 210222211095 and 210222211104.

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, 1329154 + ... + 1478882.

It is an arithmetic number, because the mean of its divisors is an integer number (5921222580).

Almost surely, 2^210222211122 is an apocalyptic number.

210222211122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 210222211122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284218683840).

210222211122 is an abundant number, since it is smaller than the sum of its proper divisors (358215156558).

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

210222211122 is a wasteful number, since it uses less digits than its factorization.

210222211122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150768 (or 150765 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 210222211122 its reverse (221112222012), we get a palindrome (431334433134).

The spelling of 210222211122 in words is "two hundred ten billion, two hundred twenty-two million, two hundred eleven thousand, one hundred twenty-two".