1100102222121 has 24 divisors (see below), whose sum is σ = 1681654309440. Its totient is φ = 626645579712.

The previous prime is 1100102222027. The next prime is 1100102222159. The reversal of 1100102222121 is 1212222010011.

It is not a de Polignac number, because 1100102222121 - 2²² = 1100098027817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1100102222121.

It is not an unprimeable number, because it can be changed into a prime (1100102222161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1849615 + ... + 2370923.

It is an arithmetic number, because the mean of its divisors is an integer number (70068929560).

Almost surely, 2^{1100102222121} is an apocalyptic number.

It is an amenable number.

1100102222121 is a deficient number, since it is larger than the sum of its proper divisors (581552087319).

1100102222121 is an frugal number, since it uses more digits than its factorization.

1100102222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521953 (or 521636 counting only the distinct ones).

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

Adding to 1100102222121 its reverse (1212222010011), we get a palindrome (2312324232132).

The spelling of 1100102222121 in words is "one trillion, one hundred billion, one hundred two million, two hundred twenty-two thousand, one hundred twenty-one".