2181421022 has 8 divisors (see below), whose sum is σ = 3569598072. Its totient is φ = 991555000.

The previous prime is 2181421019. The next prime is 2181421037. The reversal of 2181421022 is 2201241812.

2181421022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49577729 + ... + 49577772.

It is an arithmetic number, because the mean of its divisors is an integer number (446199759).

Almost surely, 2^2181421022 is an apocalyptic number.

2181421022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2181421022 is a deficient number, since it is larger than the sum of its proper divisors (1388177050).

2181421022 is a wasteful number, since it uses less digits than its factorization.

2181421022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99155514.

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 2181421022 is about 46705.6851143413. The cubic root of 2181421022 is about 1296.9199314820.

Adding to 2181421022 its reverse (2201241812), we get a palindrome (4382662834).

The spelling of 2181421022 in words is "two billion, one hundred eighty-one million, four hundred twenty-one thousand, twenty-two".