1120021211121 has 16 divisors (see below), whose sum is σ = 1521554161920. Its totient is φ = 732644392320.

The previous prime is 1120021211081. The next prime is 1120021211137. The reversal of 1120021211121 is 1211121200211.

It is a happy number.

It is not a de Polignac number, because 1120021211121 - 2²⁶ = 1119954102257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1120021211121.

It is not an unprimeable number, because it can be changed into a prime (1120021211171) 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, 7407225 + ... + 7556918.

It is an arithmetic number, because the mean of its divisors is an integer number (95097135120).

Almost surely, 2^{1120021211121} is an apocalyptic number.

It is an amenable number.

1120021211121 is a deficient number, since it is larger than the sum of its proper divisors (401532950799).

1120021211121 is a wasteful number, since it uses less digits than its factorization.

1120021211121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14964616.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1120021211121 its reverse (1211121200211), we get a palindrome (2331142411332).

The spelling of 1120021211121 in words is "one trillion, one hundred twenty billion, twenty-one million, two hundred eleven thousand, one hundred twenty-one".