212112110212222 has 24 divisors (see below), whose sum is σ = 352069160751000. Its totient is φ = 95767517712240.

The previous prime is 212112110212207. The next prime is 212112110212259. The reversal of 212112110212222 is 222212011211212.

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 = 212112110212193 and 212112110212202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2941226772 + ... + 2941298887.

It is an arithmetic number, because the mean of its divisors is an integer number (14669548364625).

Almost surely, 2^{212112110212222} is an apocalyptic number.

212112110212222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212112110212222 is a deficient number, since it is larger than the sum of its proper divisors (139957050538778).

212112110212222 is a wasteful number, since it uses less digits than its factorization.

212112110212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5882525832 (or 5882525821 counting only the distinct ones).

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

Adding to 212112110212222 its reverse (222212011211212), we get a palindrome (434324121423434).

The spelling of 212112110212222 in words is "two hundred twelve trillion, one hundred twelve billion, one hundred ten million, two hundred twelve thousand, two hundred twenty-two".