421142222 has 4 divisors (see below), whose sum is σ = 631713336. Its totient is φ = 210571110.

The previous prime is 421142159. The next prime is 421142233. The reversal of 421142222 is 222241124.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 421142194 and 421142203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105285554 + ... + 105285557.

It is an arithmetic number, because the mean of its divisors is an integer number (157928334).

Almost surely, 2^421142222 is an apocalyptic number.

421142222 is a deficient number, since it is larger than the sum of its proper divisors (210571114).

421142222 is a wasteful number, since it uses less digits than its factorization.

421142222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210571113.

The product of its digits is 512, while the sum is 20.

The square root of 421142222 is about 20521.7499741128. The cubic root of 421142222 is about 749.5655095245.

Adding to 421142222 its reverse (222241124), we get a palindrome (643383346).

The spelling of 421142222 in words is "four hundred twenty-one million, one hundred forty-two thousand, two hundred twenty-two".