105000221554 has 32 divisors (see below), whose sum is σ = 159736119984. Its totient is φ = 51759820800.

The previous prime is 105000221471. The next prime is 105000221563. The reversal of 105000221554 is 455122000501.

It can be written as a sum of positive squares in 8 ways, for example, as 13083928225 + 91916293329 = 114385^2 + 303177^2 .

It is a super-2 number, since 2×105000221554² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67610442 + ... + 67611994.

Almost surely, 2^105000221554 is an apocalyptic number.

105000221554 is a deficient number, since it is larger than the sum of its proper divisors (54735898430).

105000221554 is a wasteful number, since it uses less digits than its factorization.

105000221554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2862.

The product of its (nonzero) digits is 2000, while the sum is 25.

The spelling of 105000221554 in words is "one hundred five billion, two hundred twenty-one thousand, five hundred fifty-four".