3551222247631 has 2 divisors, whose sum is σ = 3551222247632. Its totient is φ = 3551222247630.

The previous prime is 3551222247553. The next prime is 3551222247659. The reversal of 3551222247631 is 1367422221553.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3551222247631 - 2³³ = 3542632313039 is a prime.

It is a super-2 number, since 2×3551222247631² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3551222247031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1775611123815 + 1775611123816.

It is an arithmetic number, because the mean of its divisors is an integer number (1775611123816).

Almost surely, 2^{3551222247631} is an apocalyptic number.

3551222247631 is a deficient number, since it is larger than the sum of its proper divisors (1).

3551222247631 is an equidigital number, since it uses as much as digits as its factorization.

3551222247631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 604800, while the sum is 43.

The spelling of 3551222247631 in words is "three trillion, five hundred fifty-one billion, two hundred twenty-two million, two hundred forty-seven thousand, six hundred thirty-one".