1421122242 has 24 divisors (see below), whose sum is σ = 3019273776. Its totient is φ = 445841728.

The previous prime is 1421122223. The next prime is 1421122249. The reversal of 1421122242 is 2422211241.

It is not an unprimeable number, because it can be changed into a prime (1421122249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 408048 + ... + 411515.

It is an arithmetic number, because the mean of its divisors is an integer number (125803074).

Almost surely, 2^1421122242 is an apocalyptic number.

1421122242 is an abundant number, since it is smaller than the sum of its proper divisors (1598151534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1421122242 is a wasteful number, since it uses less digits than its factorization.

1421122242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819602 (or 819585 counting only the distinct ones).

The product of its digits is 512, while the sum is 21.

The square root of 1421122242 is about 37697.7750271816. The cubic root of 1421122242 is about 1124.2868875262.

Adding to 1421122242 its reverse (2422211241), we get a palindrome (3843333483).

The spelling of 1421122242 in words is "one billion, four hundred twenty-one million, one hundred twenty-two thousand, two hundred forty-two".