1121021022109 has 16 divisors (see below), whose sum is σ = 1150728606720. Its totient is φ = 1091427840000.

The previous prime is 1121021022103. The next prime is 1121021022127. The reversal of 1121021022109 is 9012201201211.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121021022109 is a prime.

It is a super-3 number, since 3×1121021022109³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1121021022109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121021022103) 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, 58833634 + ... + 58852684.

It is an arithmetic number, because the mean of its divisors is an integer number (71920537920).

Almost surely, 2^{1121021022109} is an apocalyptic number.

It is an amenable number.

1121021022109 is a deficient number, since it is larger than the sum of its proper divisors (29707584611).

1121021022109 is a wasteful number, since it uses less digits than its factorization.

1121021022109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21972.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 1121021022109 in words is "one trillion, one hundred twenty-one billion, twenty-one million, twenty-two thousand, one hundred nine".