11221220002124 has 24 divisors (see below), whose sum is σ = 21424298430528. Its totient is φ = 5100085657040.

The previous prime is 11221220002099. The next prime is 11221220002141. The reversal of 11221220002124 is 42120002212211.

It is a happy number.

It is a super-2 number, since 2×11221220002124² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11221220002096 and 11221220002105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11237942 + ... + 12195645.

It is an arithmetic number, because the mean of its divisors is an integer number (892679101272).

Almost surely, 2^{11221220002124} is an apocalyptic number.

It is an amenable number.

11221220002124 is a deficient number, since it is larger than the sum of its proper divisors (10203078428404).

11221220002124 is a wasteful number, since it uses less digits than its factorization.

11221220002124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23444485 (or 23444483 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 11221220002124 its reverse (42120002212211), we get a palindrome (53341222214335).

The spelling of 11221220002124 in words is "eleven trillion, two hundred twenty-one billion, two hundred twenty million, two thousand, one hundred twenty-four".