106550707221 has 72 divisors (see below), whose sum is σ = 191270832480. Its totient is φ = 56820367296.

The previous prime is 106550707201. The next prime is 106550707231. The reversal of 106550707221 is 122707055601.

106550707221 is a `hidden beast` number, since 1 + 0 + 65 + 507 + 0 + 72 + 21 = 666.

It is not a de Polignac number, because 106550707221 - 2¹⁵ = 106550674453 is a prime.

It is a super-2 number, since 2×106550707221² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106550707201) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 466495 + ... + 656291.

It is an arithmetic number, because the mean of its divisors is an integer number (2656539340).

Almost surely, 2^106550707221 is an apocalyptic number.

It is an amenable number.

106550707221 is a deficient number, since it is larger than the sum of its proper divisors (84720125259).

106550707221 is a wasteful number, since it uses less digits than its factorization.

106550707221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189903 (or 189893 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

The spelling of 106550707221 in words is "one hundred six billion, five hundred fifty million, seven hundred seven thousand, two hundred twenty-one".