2190949113121 has 4 divisors (see below), whose sum is σ = 2191853345472. Its totient is φ = 2190044880772.

The previous prime is 2190949113113. The next prime is 2190949113163. The reversal of 2190949113121 is 1213119490912.

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 2190949113121 - 2³ = 2190949113113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2190940113121) 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, 452112541 + ... + 452117386.

It is an arithmetic number, because the mean of its divisors is an integer number (547963336368).

Almost surely, 2^{2190949113121} is an apocalyptic number.

It is an amenable number.

2190949113121 is a deficient number, since it is larger than the sum of its proper divisors (904232351).

2190949113121 is an equidigital number, since it uses as much as digits as its factorization.

2190949113121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904232350.

The product of its (nonzero) digits is 34992, while the sum is 43.

The spelling of 2190949113121 in words is "two trillion, one hundred ninety billion, nine hundred forty-nine million, one hundred thirteen thousand, one hundred twenty-one".