2131220033111 has 8 divisors (see below), whose sum is σ = 2295359308704. Its totient is φ = 1967109225120.

The previous prime is 2131220033051. The next prime is 2131220033119. The reversal of 2131220033111 is 1113300221312.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2131220033111 - 2²⁶ = 2131152924247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131220033119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6961280 + ... + 7260981.

It is an arithmetic number, because the mean of its divisors is an integer number (286919913588).

Almost surely, 2^{2131220033111} is an apocalyptic number.

2131220033111 is a deficient number, since it is larger than the sum of its proper divisors (164139275593).

2131220033111 is a wasteful number, since it uses less digits than its factorization.

2131220033111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14233801.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 2131220033111 its reverse (1113300221312), we get a palindrome (3244520254423).

The spelling of 2131220033111 in words is "two trillion, one hundred thirty-one billion, two hundred twenty million, thirty-three thousand, one hundred eleven".