2226153041221 has 2 divisors, whose sum is σ = 2226153041222. Its totient is φ = 2226153041220.

The previous prime is 2226153041201. The next prime is 2226153041239. The reversal of 2226153041221 is 1221403516222.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2224157632321 + 1995408900 = 1491361^2 + 44670^2 .

It is a cyclic number.

It is not a de Polignac number, because 2226153041221 - 2⁷ = 2226153041093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2226153041201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1113076520610 + 1113076520611.

It is an arithmetic number, because the mean of its divisors is an integer number (1113076520611).

Almost surely, 2^{2226153041221} is an apocalyptic number.

It is an amenable number.

2226153041221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2226153041221 is an equidigital number, since it uses as much as digits as its factorization.

2226153041221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 2226153041221 its reverse (1221403516222), we get a palindrome (3447556557443).

The spelling of 2226153041221 in words is "two trillion, two hundred twenty-six billion, one hundred fifty-three million, forty-one thousand, two hundred twenty-one".