11220122021212 has 24 divisors (see below), whose sum is σ = 21413280593600. Its totient is φ = 5112966995136.

The previous prime is 11220122021177. The next prime is 11220122021231. The reversal of 11220122021212 is 21212022102211.

It is a super-2 number, since 2×11220122021212² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11220122021212.

It is a congruent number.

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, 1365638787 + ... + 1365647002.

Almost surely, 2^{11220122021212} is an apocalyptic number.

It is an amenable number.

11220122021212 is a deficient number, since it is larger than the sum of its proper divisors (10193158572388).

11220122021212 is a wasteful number, since it uses less digits than its factorization.

11220122021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2731285885 (or 2731285883 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11220122021212 its reverse (21212022102211), we get a palindrome (32432144123423).

The spelling of 11220122021212 in words is "eleven trillion, two hundred twenty billion, one hundred twenty-two million, twenty-one thousand, two hundred twelve".