2111274801 has 20 divisors (see below), whose sum is σ = 3157680372. Its totient is φ = 1405820448.

The previous prime is 2111274793. The next prime is 2111274839. The reversal of 2111274801 is 1084721112.

It can be written as a sum of positive squares in 2 ways, for example, as 134583201 + 1976691600 = 11601^2 + 44460^2 .

It is not a de Polignac number, because 2111274801 - 2³ = 2111274793 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2111274401) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 53815 + ... + 84371.

Almost surely, 2^2111274801 is an apocalyptic number.

It is an amenable number.

2111274801 is a deficient number, since it is larger than the sum of its proper divisors (1046405571).

2111274801 is an equidigital number, since it uses as much as digits as its factorization.

2111274801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31422 (or 31413 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 2111274801 is about 45948.6104360077. The cubic root of 2111274801 is about 1282.8668653962.

Adding to 2111274801 its reverse (1084721112), we get a palindrome (3195995913).

The spelling of 2111274801 in words is "two billion, one hundred eleven million, two hundred seventy-four thousand, eight hundred one".