451101416611221 has 12 divisors (see below), whose sum is σ = 652918004225760. Its totient is φ = 300121784300520.

The previous prime is 451101416611213. The next prime is 451101416611297. The reversal of 451101416611221 is 122116614101154.

451101416611221 is a `hidden beast` number, since 4 + 5 + 1 + 1 + 0 + 1 + 4 + 16 + 611 + 2 + 21 = 666.

It is not a de Polignac number, because 451101416611221 - 2³ = 451101416611213 is a prime.

It is a super-2 number, since 2×451101416611221² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451101416618221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51041115361 + ... + 51041124198.

It is an arithmetic number, because the mean of its divisors is an integer number (54409833685480).

Almost surely, 2^{451101416611221} is an apocalyptic number.

It is an amenable number.

451101416611221 is a deficient number, since it is larger than the sum of its proper divisors (201816587614539).

451101416611221 is a wasteful number, since it uses less digits than its factorization.

451101416611221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102082240056 (or 102082240053 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The spelling of 451101416611221 in words is "four hundred fifty-one trillion, one hundred one billion, four hundred sixteen million, six hundred eleven thousand, two hundred twenty-one".