1222102111212 has 48 divisors (see below), whose sum is σ = 3335171459200. Its totient is φ = 385926981840.

The previous prime is 1222102111199. The next prime is 1222102111249. The reversal of 1222102111212 is 2121112012221.

1222102111212 is a `hidden beast` number, since 122 + 210 + 211 + 121 + 2 = 666.

It is a super-2 number, since 2×1222102111212² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297781114 + ... + 297785217.

Almost surely, 2^{1222102111212} is an apocalyptic number.

1222102111212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1222102111212 is an abundant number, since it is smaller than the sum of its proper divisors (2113069347988).

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

1222102111212 is a wasteful number, since it uses less digits than its factorization.

1222102111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595566363 (or 595566355 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1222102111212 its reverse (2121112012221), we get a palindrome (3343214123433).

The spelling of 1222102111212 in words is "one trillion, two hundred twenty-two billion, one hundred two million, one hundred eleven thousand, two hundred twelve".