11221210012122 has 96 divisors (see below), whose sum is σ = 27920715863040. Its totient is φ = 3221178948000.

The previous prime is 11221210012099. The next prime is 11221210012147. The reversal of 11221210012122 is 22121001212211.

It is a super-2 number, since 2×11221210012122² (a number of 27 digits) contains 22 as substring.

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 = 11221210012095 and 11221210012104.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 59311297 + ... + 59500187.

It is an arithmetic number, because the mean of its divisors is an integer number (290840790240).

Almost surely, 2^{11221210012122} is an apocalyptic number.

11221210012122 is an abundant number, since it is smaller than the sum of its proper divisors (16699505850918).

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

11221210012122 is a wasteful number, since it uses less digits than its factorization.

11221210012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204720 (or 204717 counting only the distinct ones).

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

Adding to 11221210012122 its reverse (22121001212211), we get a palindrome (33342211224333).

It can be divided in two parts, 11 and 221210012122, that multiplied together give a palindrome (2433310133342).

The spelling of 11221210012122 in words is "eleven trillion, two hundred twenty-one billion, two hundred ten million, twelve thousand, one hundred twenty-two".