220221367620 has 24 divisors (see below), whose sum is σ = 616619829504. Its totient is φ = 58725698016.

The previous prime is 220221367601. The next prime is 220221367631. The reversal of 220221367620 is 26763122022.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1835178004 + ... + 1835178123.

It is an arithmetic number, because the mean of its divisors is an integer number (25692492896).

Almost surely, 2^220221367620 is an apocalyptic number.

220221367620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220221367620 is an abundant number, since it is smaller than the sum of its proper divisors (396398461884).

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

220221367620 is a wasteful number, since it uses less digits than its factorization.

220221367620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3670356139 (or 3670356137 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

Adding to 220221367620 its reverse (26763122022), we get a palindrome (246984489642).

The spelling of 220221367620 in words is "two hundred twenty billion, two hundred twenty-one million, three hundred sixty-seven thousand, six hundred twenty".