1120121012021 has 4 divisors (see below), whose sum is σ = 1221950194944. Its totient is φ = 1018291829100.

The previous prime is 1120121011991. The next prime is 1120121012047. The reversal of 1120121012021 is 1202101210211.

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 1120121012021 - 2³⁴ = 1102941142837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1120121011987 and 1120121012005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120121012051) 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, 50914591445 + ... + 50914591466.

It is an arithmetic number, because the mean of its divisors is an integer number (305487548736).

Almost surely, 2^{1120121012021} is an apocalyptic number.

1120121012021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1120121012021 is a deficient number, since it is larger than the sum of its proper divisors (101829182923).

1120121012021 is a wasteful number, since it uses less digits than its factorization.

1120121012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101829182922.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1120121012021 its reverse (1202101210211), we get a palindrome (2322222222232).

The spelling of 1120121012021 in words is "one trillion, one hundred twenty billion, one hundred twenty-one million, twelve thousand, twenty-one".