1100202221121 has 16 divisors (see below), whose sum is σ = 1634975438400. Its totient is φ = 653990174208.

The previous prime is 1100202221113. The next prime is 1100202221137. The reversal of 1100202221121 is 1211222020011.

It is not a de Polignac number, because 1100202221121 - 2³ = 1100202221113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1100202221121.

It is not an unprimeable number, because it can be changed into a prime (1100202221141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 567698836 + ... + 567700773.

It is an arithmetic number, because the mean of its divisors is an integer number (102185964900).

Almost surely, 2^{1100202221121} is an apocalyptic number.

It is an amenable number.

1100202221121 is a deficient number, since it is larger than the sum of its proper divisors (534773217279).

1100202221121 is a wasteful number, since it uses less digits than its factorization.

1100202221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135399648.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1100202221121 its reverse (1211222020011), we get a palindrome (2311424241132).

The spelling of 1100202221121 in words is "one trillion, one hundred billion, two hundred two million, two hundred twenty-one thousand, one hundred twenty-one".