1420022141 has 4 divisors (see below), whose sum is σ = 1420278300. Its totient is φ = 1419765984.

The previous prime is 1420022129. The next prime is 1420022147. The reversal of 1420022141 is 1412200241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1412200241 = 271 ⋅5211071.

It can be written as a sum of positive squares in 2 ways, for example, as 552955225 + 867066916 = 23515^2 + 29446^2 .

It is a cyclic number.

It is not a de Polignac number, because 1420022141 - 2¹⁰ = 1420021117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420022147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119576 + ... + 130913.

It is an arithmetic number, because the mean of its divisors is an integer number (355069575).

Almost surely, 2^1420022141 is an apocalyptic number.

It is an amenable number.

1420022141 is a deficient number, since it is larger than the sum of its proper divisors (256159).

1420022141 is an equidigital number, since it uses as much as digits as its factorization.

1420022141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256158.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1420022141 is about 37683.1811422550. The cubic root of 1420022141 is about 1123.9967064340.

Adding to 1420022141 its reverse (1412200241), we get a palindrome (2832222382).

The spelling of 1420022141 in words is "one billion, four hundred twenty million, twenty-two thousand, one hundred forty-one".