201421422 has 24 divisors (see below), whose sum is σ = 436757880. Its totient is φ = 67087440.

The previous prime is 201421411. The next prime is 201421433. The reversal of 201421422 is 224124102.

201421422 is a `hidden beast` number, since 201 + 42 + 1 + 422 = 666.

It is an interprime number because it is at equal distance from previous prime (201421411) and next prime (201421433).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 201421395 and 201421404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23904 + ... + 31212.

It is an arithmetic number, because the mean of its divisors is an integer number (18198245).

Almost surely, 2^201421422 is an apocalyptic number.

201421422 is an abundant number, since it is smaller than the sum of its proper divisors (235336458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201421422 is a wasteful number, since it uses less digits than its factorization.

201421422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8848 (or 8845 counting only the distinct ones).

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

The square root of 201421422 is about 14192.3015046891. The cubic root of 201421422 is about 586.1856994745.

Adding to 201421422 its reverse (224124102), we get a palindrome (425545524).

It can be divided in two parts, 20142142 and 2, that added together give a square (20142144 = 4488²).

The spelling of 201421422 in words is "two hundred one million, four hundred twenty-one thousand, four hundred twenty-two".