1421021022442 has 16 divisors (see below), whose sum is σ = 2448277430400. Its totient is φ = 605948661648.

The previous prime is 1421021022329. The next prime is 1421021022461. The reversal of 1421021022442 is 2442201201241.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255026113 + ... + 255031684.

It is an arithmetic number, because the mean of its divisors is an integer number (153017339400).

Almost surely, 2^{1421021022442} is an apocalyptic number.

1421021022442 is a deficient number, since it is larger than the sum of its proper divisors (1027256407958).

1421021022442 is a wasteful number, since it uses less digits than its factorization.

1421021022442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510058005.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 1421021022442 its reverse (2442201201241), we get a palindrome (3863222223683).

The spelling of 1421021022442 in words is "one trillion, four hundred twenty-one billion, twenty-one million, twenty-two thousand, four hundred forty-two".