1101000012121 has 16 divisors (see below), whose sum is σ = 1173604622400. Its totient is φ = 1029876000768.

The previous prime is 1101000012097. The next prime is 1101000012127. The reversal of 1101000012121 is 1212100001011.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1101000012121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1101000012098 and 1101000012107.

It is not an unprimeable number, because it can be changed into a prime (1101000012127) 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, 2470465 + ... + 2881873.

It is an arithmetic number, because the mean of its divisors is an integer number (73350288900).

Almost surely, 2^{1101000012121} is an apocalyptic number.

It is an amenable number.

1101000012121 is a deficient number, since it is larger than the sum of its proper divisors (72604610279).

1101000012121 is a wasteful number, since it uses less digits than its factorization.

1101000012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413208.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1101000012121 its reverse (1212100001011), we get a palindrome (2313100013132).

The spelling of 1101000012121 in words is "one trillion, one hundred one billion, twelve thousand, one hundred twenty-one".