11002221220122 has 48 divisors (see below), whose sum is σ = 26164791645408. Its totient is φ = 3313552393440.

The previous prime is 11002221220103. The next prime is 11002221220141. The reversal of 11002221220122 is 22102212220011.

It is a happy number.

11002221220122 is a `hidden beast` number, since 1 + 100 + 2 + 221 + 220 + 122 = 666.

It is an interprime number because it is at equal distance from previous prime (11002221220103) and next prime (11002221220141).

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 = 11002221220095 and 11002221220104.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170417953 + ... + 170482500.

It is an arithmetic number, because the mean of its divisors is an integer number (545099825946).

Almost surely, 2^{11002221220122} is an apocalyptic number.

11002221220122 is an abundant number, since it is smaller than the sum of its proper divisors (15162570425286).

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

11002221220122 is a wasteful number, since it uses less digits than its factorization.

11002221220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340900635 (or 340900632 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 11002221220122 its reverse (22102212220011), we get a palindrome (33104433440133).

It can be divided in two parts, 1100 and 2221220122, that added together give a palindrome (2221221222).

The spelling of 11002221220122 in words is "eleven trillion, two billion, two hundred twenty-one million, two hundred twenty thousand, one hundred twenty-two".