1422421111 has 8 divisors (see below), whose sum is σ = 1500768000. Its totient is φ = 1344422520.

The previous prime is 1422421097. The next prime is 1422421141. The reversal of 1422421111 is 1111242241.

It is a happy number.

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

It is not a de Polignac number, because 1422421111 - 2⁷ = 1422420983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422421141) 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, 78661 + ... + 95038.

It is an arithmetic number, because the mean of its divisors is an integer number (187596000).

Almost surely, 2^1422421111 is an apocalyptic number.

1422421111 is a deficient number, since it is larger than the sum of its proper divisors (78346889).

1422421111 is a wasteful number, since it uses less digits than its factorization.

1422421111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174149.

The product of its digits is 128, while the sum is 19.

The square root of 1422421111 is about 37714.9984886650. The cubic root of 1422421111 is about 1124.6293062793.

Adding to 1422421111 its reverse (1111242241), we get a palindrome (2533663352).

The spelling of 1422421111 in words is "one billion, four hundred twenty-two million, four hundred twenty-one thousand, one hundred eleven".