2222142421 has 8 divisors (see below), whose sum is σ = 2233291104. Its totient is φ = 2211020400.

The previous prime is 2222142383. The next prime is 2222142431. The reversal of 2222142421 is 1242412222.

2222142421 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 cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2222142421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2222142392 and 2222142401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222142431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172246 + ... + 184696.

It is an arithmetic number, because the mean of its divisors is an integer number (279161388).

Almost surely, 2^2222142421 is an apocalyptic number.

It is an amenable number.

2222142421 is a deficient number, since it is larger than the sum of its proper divisors (11148683).

2222142421 is a wasteful number, since it uses less digits than its factorization.

2222142421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13331.

The product of its digits is 1024, while the sum is 22.

The square root of 2222142421 is about 47139.6056517235. The cubic root of 2222142421 is about 1304.9402596415.

Adding to 2222142421 its reverse (1242412222), we get a palindrome (3464554643).

The spelling of 2222142421 in words is "two billion, two hundred twenty-two million, one hundred forty-two thousand, four hundred twenty-one".