2276221221277 has 4 divisors (see below), whose sum is σ = 2329156598560. Its totient is φ = 2223285843996.

The previous prime is 2276221221251. The next prime is 2276221221299. The reversal of 2276221221277 is 7721221226722.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2276221221277 - 2³¹ = 2274073737629 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 52935377239 = 2276221221277 / (2 + 2 + 7 + 6 + 2 + 2 + 1 + 2 + 2 + 1 + 2 + 7 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2276221221877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26467688577 + ... + 26467688662.

It is an arithmetic number, because the mean of its divisors is an integer number (582289149640).

Almost surely, 2^{2276221221277} is an apocalyptic number.

It is an amenable number.

2276221221277 is a deficient number, since it is larger than the sum of its proper divisors (52935377283).

2276221221277 is an equidigital number, since it uses as much as digits as its factorization.

2276221221277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52935377282.

The product of its digits is 263424, while the sum is 43.

Adding to 2276221221277 its reverse (7721221226722), we get a palindrome (9997442447999).

Subtracting 2276221221277 from its reverse (7721221226722), we obtain a palindrome (5445000005445).

The spelling of 2276221221277 in words is "two trillion, two hundred seventy-six billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred seventy-seven".