221631253456633 has 8 divisors (see below), whose sum is σ = 233328873412800. Its totient is φ = 209936915214768.

The previous prime is 221631253456631. The next prime is 221631253456661. The reversal of 221631253456633 is 336654352136122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221631253456633 - 2¹ = 221631253456631 is a prime.

It is a super-2 number, since 2×221631253456633² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221631253456631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 820289941 + ... + 820560082.

It is an arithmetic number, because the mean of its divisors is an integer number (29166109176600).

Almost surely, 2^{221631253456633} is an apocalyptic number.

It is an amenable number.

221631253456633 is a deficient number, since it is larger than the sum of its proper divisors (11697619956167).

221631253456633 is a wasteful number, since it uses less digits than its factorization.

221631253456633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640857151.

The product of its digits is 13996800, while the sum is 52.

The spelling of 221631253456633 in words is "two hundred twenty-one trillion, six hundred thirty-one billion, two hundred fifty-three million, four hundred fifty-six thousand, six hundred thirty-three".