1012212111222 has 24 divisors (see below), whose sum is σ = 2361828260064. Its totient is φ = 311449880304.

The previous prime is 1012212111151. The next prime is 1012212111233. The reversal of 1012212111222 is 2221112122101.

1012212111222 is a `hidden beast` number, since 10 + 1 + 221 + 211 + 1 + 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 = 1012212111195 and 1012212111204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2162846158 + ... + 2162846625.

It is an arithmetic number, because the mean of its divisors is an integer number (98409510836).

Almost surely, 2^{1012212111222} is an apocalyptic number.

1012212111222 is an abundant number, since it is smaller than the sum of its proper divisors (1349616148842).

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

1012212111222 is a wasteful number, since it uses less digits than its factorization.

1012212111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4325692804 (or 4325692801 counting only the distinct ones).

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

Adding to 1012212111222 its reverse (2221112122101), we get a palindrome (3233324233323).

The spelling of 1012212111222 in words is "one trillion, twelve billion, two hundred twelve million, one hundred eleven thousand, two hundred twenty-two".