420222141 has 16 divisors (see below), whose sum is σ = 628267200. Its totient is φ = 277575984.

The previous prime is 420222137. The next prime is 420222169. The reversal of 420222141 is 141222024.

It is not a de Polignac number, because 420222141 - 2² = 420222137 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420222241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68451 + ... + 74336.

It is an arithmetic number, because the mean of its divisors is an integer number (39266700).

Almost surely, 2^420222141 is an apocalyptic number.

It is an amenable number.

420222141 is a deficient number, since it is larger than the sum of its proper divisors (208045059).

420222141 is a wasteful number, since it uses less digits than its factorization.

420222141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142905 (or 142899 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 420222141 is about 20499.3205009337. The cubic root of 420222141 is about 749.0192460546.

Adding to 420222141 its reverse (141222024), we get a palindrome (561444165).

The spelling of 420222141 in words is "four hundred twenty million, two hundred twenty-two thousand, one hundred forty-one".