7267012772221 has 4 divisors (see below), whose sum is σ = 7274920295200. Its totient is φ = 7259105249244.

The previous prime is 7267012772203. The next prime is 7267012772233. The reversal of 7267012772221 is 1222772107627.

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 7267012772221 - 2⁹ = 7267012771709 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 (7267012772291) 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, 3953760111 + ... + 3953761948.

It is an arithmetic number, because the mean of its divisors is an integer number (1818730073800).

Almost surely, 2^{7267012772221} is an apocalyptic number.

It is an amenable number.

7267012772221 is a deficient number, since it is larger than the sum of its proper divisors (7907522979).

7267012772221 is an equidigital number, since it uses as much as digits as its factorization.

7267012772221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7907522978.

The product of its (nonzero) digits is 460992, while the sum is 46.

Adding to 7267012772221 its reverse (1222772107627), we get a palindrome (8489784879848).

The spelling of 7267012772221 in words is "seven trillion, two hundred sixty-seven billion, twelve million, seven hundred seventy-two thousand, two hundred twenty-one".