1101221220200 has 24 divisors (see below), whose sum is σ = 2560339337430. Its totient is φ = 440488488000.

The previous prime is 1101221220149. The next prime is 1101221220311. The reversal of 1101221220200 is 20221221011.

It can be written as a sum of positive squares in 3 ways, for example, as 764285086756 + 336936133444 = 874234^2 + 580462^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2753052851 + ... + 2753053250.

Almost surely, 2^{1101221220200} is an apocalyptic number.

1101221220200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101221220200 is an abundant number, since it is smaller than the sum of its proper divisors (1459118117230).

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

1101221220200 is a wasteful number, since it uses less digits than its factorization.

1101221220200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5506106117 (or 5506106108 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1101221220200 its reverse (20221221011), we get a palindrome (1121442441211).

The spelling of 1101221220200 in words is "one trillion, one hundred one billion, two hundred twenty-one million, two hundred twenty thousand, two hundred".