2221101000100 has 36 divisors (see below), whose sum is σ = 5029345226304. Its totient is φ = 849812555680.

The previous prime is 2221101000091. The next prime is 2221101000109. The reversal of 2221101000100 is 10001011222.

It is an interprime number because it is at equal distance from previous prime (2221101000091) and next prime (2221101000109).

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 (2221101000109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 482845744 + ... + 482850343.

It is an arithmetic number, because the mean of its divisors is an integer number (139704034064).

Almost surely, 2^{2221101000100} is an apocalyptic number.

2221101000100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221101000100 is an abundant number, since it is smaller than the sum of its proper divisors (2808244226204).

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

2221101000100 is a wasteful number, since it uses less digits than its factorization.

2221101000100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965696124 (or 965696117 counting only the distinct ones).

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

Adding to 2221101000100 its reverse (10001011222), we get a palindrome (2231102011322).

The spelling of 2221101000100 in words is "two trillion, two hundred twenty-one billion, one hundred one million, one hundred", and thus it is an aban number.