222066355420 has 96 divisors (see below), whose sum is σ = 592470982656. Its totient is φ = 68013216000.

The previous prime is 222066355387. The next prime is 222066355429. The reversal of 222066355420 is 24553660222.

It is a self number, because there is not a number n which added to its sum of digits gives 222066355420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222066355429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1911556 + ... + 2024395.

It is an arithmetic number, because the mean of its divisors is an integer number (6171572736).

Almost surely, 2^222066355420 is an apocalyptic number.

222066355420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222066355420 is an abundant number, since it is smaller than the sum of its proper divisors (370404627236).

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

222066355420 is a wasteful number, since it uses less digits than its factorization.

222066355420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3936011 (or 3936009 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 37.

The spelling of 222066355420 in words is "two hundred twenty-two billion, sixty-six million, three hundred fifty-five thousand, four hundred twenty".