210211122112222 has 128 divisors (see below), whose sum is σ = 399710087562240. Its totient is φ = 80537376522240.

The previous prime is 210211122112183. The next prime is 210211122112261. The reversal of 210211122112222 is 222211221112012.

It is an interprime number because it is at equal distance from previous prime (210211122112183) and next prime (210211122112261).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 210211122112193 and 210211122112202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9437923678 + ... + 9437945950.

It is an arithmetic number, because the mean of its divisors is an integer number (3122735059080).

Almost surely, 2^{210211122112222} is an apocalyptic number.

210211122112222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

210211122112222 is a deficient number, since it is larger than the sum of its proper divisors (189498965450018).

210211122112222 is a wasteful number, since it uses less digits than its factorization.

210211122112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25778.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 210211122112222 its reverse (222211221112012), we get a palindrome (432422343224234).

The spelling of 210211122112222 in words is "two hundred ten trillion, two hundred eleven billion, one hundred twenty-two million, one hundred twelve thousand, two hundred twenty-two".