2045131122 has 32 divisors (see below), whose sum is σ = 4182316992. Its totient is φ = 666537984.

The previous prime is 2045131117. The next prime is 2045131129. The reversal of 2045131122 is 2211315402.

It is a super-2 number, since 2×2045131122² = 8365122612345957768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2045131129) 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, 27138 + ... + 69474.

It is an arithmetic number, because the mean of its divisors is an integer number (130697406).

Almost surely, 2^2045131122 is an apocalyptic number.

2045131122 is an abundant number, since it is smaller than the sum of its proper divisors (2137185870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2045131122 is a wasteful number, since it uses less digits than its factorization.

2045131122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42522.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2045131122 is about 45223.1259644886. The cubic root of 2045131122 is about 1269.3275879179.

Adding to 2045131122 its reverse (2211315402), we get a palindrome (4256446524).

It can be divided in two parts, 2045131 and 122, that added together give a triangular number (2045253 = T₂₀₂₂).

The spelling of 2045131122 in words is "two billion, forty-five million, one hundred thirty-one thousand, one hundred twenty-two".