101224522416645 has 12 divisors (see below), whose sum is σ = 175455838855596. Its totient is φ = 53986411955520.

The previous prime is 101224522416643. The next prime is 101224522416697. The reversal of 101224522416645 is 546614225422101.

101224522416645 is a `hidden beast` number, since 1 + 0 + 1 + 2 + 24 + 522 + 4 + 1 + 66 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15550671712356 + 85673850704289 = 3943434^2 + 9256017^2 .

It is not a de Polignac number, because 101224522416645 - 2¹ = 101224522416643 is a prime.

It is a super-2 number, since 2×101224522416645² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 2249433831481 = 101224522416645 / (1 + 0 + 1 + 2 + 2 + 4 + 5 + 2 + 2 + 4 + 1 + 6 + 6 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 101224522416645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101224522416643) 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, 1124716915696 + ... + 1124716915785.

It is an arithmetic number, because the mean of its divisors is an integer number (14621319904633).

Almost surely, 2^{101224522416645} is an apocalyptic number.

101224522416645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

101224522416645 is a deficient number, since it is larger than the sum of its proper divisors (74231316438951).

101224522416645 is a wasteful number, since it uses less digits than its factorization.

101224522416645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2249433831492 (or 2249433831489 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 45.

Adding to 101224522416645 its reverse (546614225422101), we get a palindrome (647838747838746).

The spelling of 101224522416645 in words is "one hundred one trillion, two hundred twenty-four billion, five hundred twenty-two million, four hundred sixteen thousand, six hundred forty-five".