1421101242 has 48 divisors (see below), whose sum is σ = 3362654880. Its totient is φ = 430164000.

The previous prime is 1421101193. The next prime is 1421101261. The reversal of 1421101242 is 2421011241.

1421101242 is a `hidden beast` number, since 1 + 421 + 1 + 0 + 1 + 242 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 204684 + ... + 211512.

It is an arithmetic number, because the mean of its divisors is an integer number (70055310).

Almost surely, 2^1421101242 is an apocalyptic number.

1421101242 is an abundant number, since it is smaller than the sum of its proper divisors (1941553638).

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

1421101242 is a wasteful number, since it uses less digits than its factorization.

1421101242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7899 (or 7896 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1421101242 is about 37697.4964951255. The cubic root of 1421101242 is about 1124.2813496162.

Adding to 1421101242 its reverse (2421011241), we get a palindrome (3842112483).

Subtracting 1421101242 from its reverse (2421011241), we obtain a palindrome (999909999).

The spelling of 1421101242 in words is "one billion, four hundred twenty-one million, one hundred one thousand, two hundred forty-two".