1100210000121 has 8 divisors (see below), whose sum is σ = 1629940740960. Its totient is φ = 733473333396.

The previous prime is 1100210000107. The next prime is 1100210000147. The reversal of 1100210000121 is 1210000120011.

It is a happy number.

It is not a de Polignac number, because 1100210000121 - 2¹¹ = 1100209998073 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1100210000191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20374259235 + ... + 20374259288.

It is an arithmetic number, because the mean of its divisors is an integer number (203742592620).

Almost surely, 2^{1100210000121} is an apocalyptic number.

It is an amenable number.

1100210000121 is a deficient number, since it is larger than the sum of its proper divisors (529730740839).

1100210000121 is an equidigital number, since it uses as much as digits as its factorization.

1100210000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40748518532 (or 40748518526 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1100210000121 its reverse (1210000120011), we get a palindrome (2310210120132).

The spelling of 1100210000121 in words is "one trillion, one hundred billion, two hundred ten million, one hundred twenty-one", and thus it is an aban number.