2221911842 has 8 divisors (see below), whose sum is σ = 3345541056. Its totient is φ = 1106731492.

The previous prime is 2221911841. The next prime is 2221911847. The reversal of 2221911842 is 2481191222.

2221911842 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 junction number, because it is equal to n+sod(n) for n = 2221911799 and 2221911808.

It is not an unprimeable number, because it can be changed into a prime (2221911841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2111558 + ... + 2112609.

It is an arithmetic number, because the mean of its divisors is an integer number (418192632).

Almost surely, 2^2221911842 is an apocalyptic number.

2221911842 is a deficient number, since it is larger than the sum of its proper divisors (1123629214).

2221911842 is a wasteful number, since it uses less digits than its factorization.

2221911842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4224432.

The product of its digits is 4608, while the sum is 32.

The square root of 2221911842 is about 47137.1598847449. The cubic root of 2221911842 is about 1304.8951226864.

The spelling of 2221911842 in words is "two billion, two hundred twenty-one million, nine hundred eleven thousand, eight hundred forty-two".