1421111122 has 4 divisors (see below), whose sum is σ = 2131666686. Its totient is φ = 710555560.

The previous prime is 1421111113. The next prime is 1421111123. The reversal of 1421111122 is 2211111241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2211111241 = 1697 ⋅1302953.

It can be written as a sum of positive squares in only one way, i.e., 716686441 + 704424681 = 26771^2 + 26541^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1421111096 and 1421111105.

It is not an unprimeable number, because it can be changed into a prime (1421111123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355277779 + ... + 355277782.

Almost surely, 2^1421111122 is an apocalyptic number.

1421111122 is a deficient number, since it is larger than the sum of its proper divisors (710555564).

1421111122 is an equidigital number, since it uses as much as digits as its factorization.

1421111122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710555563.

The product of its digits is 32, while the sum is 16.

The square root of 1421111122 is about 37697.6275380826. The cubic root of 1421111122 is about 1124.2839550778.

Adding to 1421111122 its reverse (2211111241), we get a palindrome (3632222363).

The spelling of 1421111122 in words is "one billion, four hundred twenty-one million, one hundred eleven thousand, one hundred twenty-two".