201110561102 has 32 divisors (see below), whose sum is σ = 354354186240. Its totient is φ = 84578346880.

The previous prime is 201110561081. The next prime is 201110561129. The reversal of 201110561102 is 201165011102.

It is a super-2 number, since 2×201110561102² (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 15 ways as a sum of consecutive naturals, for example, 4534958 + ... + 4579089.

It is an arithmetic number, because the mean of its divisors is an integer number (11073568320).

Almost surely, 2^201110561102 is an apocalyptic number.

201110561102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201110561102 is a deficient number, since it is larger than the sum of its proper divisors (153243625138).

201110561102 is a wasteful number, since it uses less digits than its factorization.

201110561102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9114136.

The product of its (nonzero) digits is 120, while the sum is 20.

Adding to 201110561102 its reverse (201165011102), we get a palindrome (402275572204).

The spelling of 201110561102 in words is "two hundred one billion, one hundred ten million, five hundred sixty-one thousand, one hundred two".