11022121201 has 12 divisors (see below), whose sum is σ = 13807932852. Its totient is φ = 8720798688.

The previous prime is 11022121183. The next prime is 11022121223. The reversal of 11022121201 is 10212122011.

It can be written as a sum of positive squares in 2 ways, for example, as 861481201 + 10160640000 = 29351^2 + 100800^2 .

It is not a de Polignac number, because 11022121201 - 2¹⁵ = 11022088433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (11022121601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8650950 + ... + 8652223.

It is an arithmetic number, because the mean of its divisors is an integer number (1150661071).

Almost surely, 2^11022121201 is an apocalyptic number.

It is an amenable number.

11022121201 is a deficient number, since it is larger than the sum of its proper divisors (2785811651).

11022121201 is a wasteful number, since it uses less digits than its factorization.

11022121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17303200 (or 17303193 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11022121201 its reverse (10212122011), we get a palindrome (21234243212).

The spelling of 11022121201 in words is "eleven billion, twenty-two million, one hundred twenty-one thousand, two hundred one".