220101201100 has 72 divisors (see below), whose sum is σ = 527317374528. Its totient is φ = 79072468800.

The previous prime is 220101201053. The next prime is 220101201101. The reversal of 220101201100 is 1102101022.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (220101201101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1114074 + ... + 1296673.

It is an arithmetic number, because the mean of its divisors is an integer number (7323852424).

Almost surely, 2^220101201100 is an apocalyptic number.

220101201100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220101201100 is an abundant number, since it is smaller than the sum of its proper divisors (307216173428).

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

220101201100 is a wasteful number, since it uses less digits than its factorization.

220101201100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2410855 (or 2410848 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 220101201100 its reverse (1102101022), we get a palindrome (221203302122).

It can be divided in two parts, 220101 and 201100, that added together give a square (421201 = 649²).

The spelling of 220101201100 in words is "two hundred twenty billion, one hundred one million, two hundred one thousand, one hundred".