4020020222 has 4 divisors (see below), whose sum is σ = 6030030336. Its totient is φ = 2010010110.

The previous prime is 4020020177. The next prime is 4020020227. The reversal of 4020020222 is 2220200204.

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 = 4020020197 and 4020020206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020020227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005005054 + ... + 1005005057.

It is an arithmetic number, because the mean of its divisors is an integer number (1507507584).

Almost surely, 2^4020020222 is an apocalyptic number.

4020020222 is a deficient number, since it is larger than the sum of its proper divisors (2010010114).

4020020222 is a wasteful number, since it uses less digits than its factorization.

4020020222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010010113.

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 4020020222 is about 63403.6294071562. The cubic root of 4020020222 is about 1590.0449892996.

Adding to 4020020222 its reverse (2220200204), we get a palindrome (6240220426).

The spelling of 4020020222 in words is "four billion, twenty million, twenty thousand, two hundred twenty-two".