2201321120018 has 16 divisors (see below), whose sum is σ = 3308338003416. Its totient is φ = 1098542839680.

The previous prime is 2201321119997. The next prime is 2201321120051. The reversal of 2201321120018 is 8100211231022.

It can be written as a sum of positive squares in 4 ways, for example, as 1478809219969 + 722511900049 = 1216063^2 + 850007^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2201321119975 and 2201321120002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3947348 + ... + 4470368.

Almost surely, 2^{2201321120018} is an apocalyptic number.

2201321120018 is a deficient number, since it is larger than the sum of its proper divisors (1107016883398).

2201321120018 is a wasteful number, since it uses less digits than its factorization.

2201321120018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527069.

The product of its (nonzero) digits is 384, while the sum is 23.

The spelling of 2201321120018 in words is "two trillion, two hundred one billion, three hundred twenty-one million, one hundred twenty thousand, eighteen".