2212077261 has 32 divisors (see below), whose sum is σ = 3211694080. Its totient is φ = 1349136000.

The previous prime is 2212077253. The next prime is 2212077269. The reversal of 2212077261 is 1627702122.

It is an interprime number because it is at equal distance from previous prime (2212077253) and next prime (2212077269).

It is not a de Polignac number, because 2212077261 - 2³ = 2212077253 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 (2212077269) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1060926 + ... + 1063008.

It is an arithmetic number, because the mean of its divisors is an integer number (100365440).

Almost surely, 2^2212077261 is an apocalyptic number.

It is an amenable number.

2212077261 is a deficient number, since it is larger than the sum of its proper divisors (999616819).

2212077261 is a wasteful number, since it uses less digits than its factorization.

2212077261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2737.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 2212077261 is about 47032.7254260265. The cubic root of 2212077261 is about 1302.9670417882.

Adding to 2212077261 its reverse (1627702122), we get a palindrome (3839779383).

The spelling of 2212077261 in words is "two billion, two hundred twelve million, seventy-seven thousand, two hundred sixty-one".