1100210220121 has 4 divisors (see below), whose sum is σ = 1158116021200. Its totient is φ = 1042304419044.

The previous prime is 1100210220107. The next prime is 1100210220173. The reversal of 1100210220121 is 1210220120011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1100210220121 - 2²¹ = 1100208122969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1100210220101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28952900511 + ... + 28952900548.

It is an arithmetic number, because the mean of its divisors is an integer number (289529005300).

Almost surely, 2^{1100210220121} is an apocalyptic number.

It is an amenable number.

1100210220121 is a deficient number, since it is larger than the sum of its proper divisors (57905801079).

1100210220121 is an equidigital number, since it uses as much as digits as its factorization.

1100210220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57905801078.

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

Adding to 1100210220121 its reverse (1210220120011), we get a palindrome (2310430340132).

The spelling of 1100210220121 in words is "one trillion, one hundred billion, two hundred ten million, two hundred twenty thousand, one hundred twenty-one".