105621616122 has 32 divisors (see below), whose sum is σ = 235806405120. Its totient is φ = 31262211120.

The previous prime is 105621616109. The next prime is 105621616127. The reversal of 105621616122 is 221616126501.

It is a super-2 number, since 2×105621616122² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (105621616127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18605622 + ... + 18611297.

It is an arithmetic number, because the mean of its divisors is an integer number (7368950160).

Almost surely, 2^105621616122 is an apocalyptic number.

105621616122 is an abundant number, since it is smaller than the sum of its proper divisors (130184788998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105621616122 is a wasteful number, since it uses less digits than its factorization.

105621616122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37216978.

The product of its (nonzero) digits is 8640, while the sum is 33.

The spelling of 105621616122 in words is "one hundred five billion, six hundred twenty-one million, six hundred sixteen thousand, one hundred twenty-two".