421222141 has 16 divisors (see below), whose sum is σ = 467970048. Its totient is φ = 377337600.

The previous prime is 421222133. The next prime is 421222159. The reversal of 421222141 is 141222124.

It is a cyclic number.

It is not a de Polignac number, because 421222141 - 2³ = 421222133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421225141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25596 + ... + 38698.

It is an arithmetic number, because the mean of its divisors is an integer number (29248128).

Almost surely, 2^421222141 is an apocalyptic number.

It is an amenable number.

421222141 is a deficient number, since it is larger than the sum of its proper divisors (46747907).

421222141 is a wasteful number, since it uses less digits than its factorization.

421222141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13212.

The product of its digits is 256, while the sum is 19.

The square root of 421222141 is about 20523.6970597405. The cubic root of 421222141 is about 749.6129208533.

Adding to 421222141 its reverse (141222124), we get a palindrome (562444265).

The spelling of 421222141 in words is "four hundred twenty-one million, two hundred twenty-two thousand, one hundred forty-one".