20100212220222 has 192 divisors, whose sum is σ = 46182706839360. Its totient is φ = 6310772582400.

The previous prime is 20100212220211. The next prime is 20100212220269. The reversal of 20100212220222 is 22202221200102.

20100212220222 is a `hidden beast` number, since 2 + 0 + 10 + 0 + 212 + 220 + 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 = 20100212220195 and 20100212220204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2780493304 + ... + 2780500532.

It is an arithmetic number, because the mean of its divisors is an integer number (240534931455).

Almost surely, 2^{20100212220222} is an apocalyptic number.

20100212220222 is an abundant number, since it is smaller than the sum of its proper divisors (26082494619138).

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

20100212220222 is a wasteful number, since it uses less digits than its factorization.

20100212220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8459 (or 8456 counting only the distinct ones).

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

Adding to 20100212220222 its reverse (22202221200102), we get a palindrome (42302433420324).

The spelling of 20100212220222 in words is "twenty trillion, one hundred billion, two hundred twelve million, two hundred twenty thousand, two hundred twenty-two".