1222101121122 has 80 divisors (see below), whose sum is σ = 3294330008640. Its totient is φ = 330794282592.

The previous prime is 1222101121091. The next prime is 1222101121133. The reversal of 1222101121122 is 2211211012221.

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 = 1222101121095 and 1222101121104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 28338733 + ... + 28381824.

It is an arithmetic number, because the mean of its divisors is an integer number (41179125108).

Almost surely, 2^{1222101121122} is an apocalyptic number.

1222101121122 is an abundant number, since it is smaller than the sum of its proper divisors (2072228887518).

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

1222101121122 is a wasteful number, since it uses less digits than its factorization.

1222101121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56720597 (or 56720588 counting only the distinct ones).

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

Adding to 1222101121122 its reverse (2211211012221), we get a palindrome (3433312133343).

The spelling of 1222101121122 in words is "one trillion, two hundred twenty-two billion, one hundred one million, one hundred twenty-one thousand, one hundred twenty-two".