106550432221 has 4 divisors (see below), whose sum is σ = 106551680032. Its totient is φ = 106549184412.

The previous prime is 106550432203. The next prime is 106550432237. The reversal of 106550432221 is 122234055601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 106550432221 - 2⁹ = 106550431709 is a prime.

It is a super-2 number, since 2×106550432221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106550432251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485601 + ... + 670006.

It is an arithmetic number, because the mean of its divisors is an integer number (26637920008).

Almost surely, 2^106550432221 is an apocalyptic number.

It is an amenable number.

106550432221 is a deficient number, since it is larger than the sum of its proper divisors (1247811).

106550432221 is an equidigital number, since it uses as much as digits as its factorization.

106550432221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247810.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 106550432221 its reverse (122234055601), we get a palindrome (228784487822).

The spelling of 106550432221 in words is "one hundred six billion, five hundred fifty million, four hundred thirty-two thousand, two hundred twenty-one".