1420221052 has 6 divisors (see below), whose sum is σ = 2485386848. Its totient is φ = 710110524.

The previous prime is 1420221029. The next prime is 1420221053. The reversal of 1420221052 is 2501220241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420221053) 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 as a sum of consecutive naturals, namely, 177527628 + ... + 177527635.

Almost surely, 2^1420221052 is an apocalyptic number.

It is an amenable number.

1420221052 is a deficient number, since it is larger than the sum of its proper divisors (1065165796).

1420221052 is a wasteful number, since it uses less digits than its factorization.

1420221052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355055267 (or 355055265 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 1420221052 is about 37685.8203041940. The cubic root of 1420221052 is about 1124.0491856323.

Adding to 1420221052 its reverse (2501220241), we get a palindrome (3921441293).

The spelling of 1420221052 in words is "one billion, four hundred twenty million, two hundred twenty-one thousand, fifty-two".