222444404420 has 48 divisors (see below), whose sum is σ = 536260666368. Its totient is φ = 75924639360.

The previous prime is 222444404417. The next prime is 222444404423. The reversal of 222444404420 is 24404444222.

It is an interprime number because it is at equal distance from previous prime (222444404417) and next prime (222444404423).

It is not an unprimeable number, because it can be changed into a prime (222444404423) 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, 3531311 + ... + 3593750.

It is an arithmetic number, because the mean of its divisors is an integer number (11172097216).

Almost surely, 2^222444404420 is an apocalyptic number.

222444404420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222444404420 is an abundant number, since it is smaller than the sum of its proper divisors (313816261948).

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

222444404420 is a wasteful number, since it uses less digits than its factorization.

222444404420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7125300 (or 7125298 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 222444404420 its reverse (24404444222), we get a palindrome (246848848642).

The spelling of 222444404420 in words is "two hundred twenty-two billion, four hundred forty-four million, four hundred four thousand, four hundred twenty".