100551224445 has 24 divisors (see below), whose sum is σ = 187148402784. Its totient is φ = 45966273696.

The previous prime is 100551224401. The next prime is 100551224483. The reversal of 100551224445 is 544422155001.

It is a happy number.

It is not a de Polignac number, because 100551224445 - 2⁹ = 100551223933 is a prime.

It is a super-2 number, since 2×100551224445² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68401459 + ... + 68402928.

It is an arithmetic number, because the mean of its divisors is an integer number (7797850116).

Almost surely, 2^100551224445 is an apocalyptic number.

100551224445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100551224445 is a deficient number, since it is larger than the sum of its proper divisors (86597178339).

100551224445 is a wasteful number, since it uses less digits than its factorization.

100551224445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136804409 (or 136804402 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 33.

Adding to 100551224445 its reverse (544422155001), we get a palindrome (644973379446).

The spelling of 100551224445 in words is "one hundred billion, five hundred fifty-one million, two hundred twenty-four thousand, four hundred forty-five".