2061225131 has 6 divisors (see below), whose sum is σ = 2397751740. Its totient is φ = 1766764356.

The previous prime is 2061225079. The next prime is 2061225151. The reversal of 2061225131 is 1315221602.

It is a de Polignac number, because none of the positive numbers 2^k-2061225131 is a prime.

It is a super-2 number, since 2×2061225131² = 8497298081331934322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2061225097 and 2061225106.

It is not an unprimeable number, because it can be changed into a prime (2061225151) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21032861 + ... + 21032958.

It is an arithmetic number, because the mean of its divisors is an integer number (399625290).

Almost surely, 2^2061225131 is an apocalyptic number.

2061225131 is a deficient number, since it is larger than the sum of its proper divisors (336526609).

2061225131 is an equidigital number, since it uses as much as digits as its factorization.

2061225131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42065833 (or 42065826 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 2061225131 is about 45400.7172960957. The cubic root of 2061225131 is about 1272.6485185284.

Adding to 2061225131 its reverse (1315221602), we get a palindrome (3376446733).

The spelling of 2061225131 in words is "two billion, sixty-one million, two hundred twenty-five thousand, one hundred thirty-one".