2100220212222 has 64 divisors (see below), whose sum is σ = 5110230942720. Its totient is φ = 634081867200.

The previous prime is 2100220212179. The next prime is 2100220212239. The reversal of 2100220212222 is 2222120220012.

2100220212222 is a `hidden beast` number, since 2 + 10 + 0 + 220 + 212 + 222 = 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 = 2100220212195 and 2100220212204.

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, 6362503 + ... + 6684450.

It is an arithmetic number, because the mean of its divisors is an integer number (79847358480).

Almost surely, 2^{2100220212222} is an apocalyptic number.

2100220212222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2100220212222 is an abundant number, since it is smaller than the sum of its proper divisors (3010010730498).

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

2100220212222 is a wasteful number, since it uses less digits than its factorization.

2100220212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13047246 (or 13047240 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2100220212222 its reverse (2222120220012), we get a palindrome (4322340432234).

The spelling of 2100220212222 in words is "two trillion, one hundred billion, two hundred twenty million, two hundred twelve thousand, two hundred twenty-two".