2212111220022 has 56 divisors (see below), whose sum is σ = 5427244850760. Its totient is φ = 670336728480.

The previous prime is 2212111220017. The next prime is 2212111220027. The reversal of 2212111220022 is 2200221112122.

It is a happy number.

2212111220022 is a `hidden beast` number, since 221 + 211 + 12 + 200 + 22 = 666.

It is an interprime number because it is at equal distance from previous prime (2212111220017) and next prime (2212111220027).

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 = 2212111219977 and 2212111220004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212111220027) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 68948647 + ... + 68980722.

Almost surely, 2^{2212111220022} is an apocalyptic number.

2212111220022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2212111220022 is an abundant number, since it is smaller than the sum of its proper divisors (3215133630738).

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

2212111220022 is a wasteful number, since it uses less digits than its factorization.

2212111220022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137929400 (or 137929385 counting only the distinct ones).

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

Adding to 2212111220022 its reverse (2200221112122), we get a palindrome (4412332332144).

The spelling of 2212111220022 in words is "two trillion, two hundred twelve billion, one hundred eleven million, two hundred twenty thousand, twenty-two".