2221101420 has 24 divisors (see below), whose sum is σ = 6219084144. Its totient is φ = 592293696.

The previous prime is 2221101383. The next prime is 2221101427. The reversal of 2221101420 is 241011222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2221101420.

It is not an unprimeable number, because it can be changed into a prime (2221101427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18509119 + ... + 18509238.

It is an arithmetic number, because the mean of its divisors is an integer number (259128506).

Almost surely, 2^2221101420 is an apocalyptic number.

2221101420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221101420 is an abundant number, since it is smaller than the sum of its proper divisors (3997982724).

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

2221101420 is a wasteful number, since it uses less digits than its factorization.

2221101420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37018369 (or 37018367 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2221101420 is about 47128.5626770009. The cubic root of 2221101420 is about 1304.7364538778.

Adding to 2221101420 its reverse (241011222), we get a palindrome (2462112642).

The spelling of 2221101420 in words is "two billion, two hundred twenty-one million, one hundred one thousand, four hundred twenty".