221422606537060 has 24 divisors (see below), whose sum is σ = 468381542884920. Its totient is φ = 87922553251584.

The previous prime is 221422606537043. The next prime is 221422606537147. The reversal of 221422606537060 is 60735606224122.

It can be written as a sum of positive squares in 4 ways, for example, as 2599698320164 + 218822908216896 = 1612358^2 + 14792664^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 221422606537060.

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, 40405582395 + ... + 40405587874.

It is an arithmetic number, because the mean of its divisors is an integer number (19515897620205).

Almost surely, 2^{221422606537060} is an apocalyptic number.

221422606537060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221422606537060 is an abundant number, since it is smaller than the sum of its proper divisors (246958936347860).

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

221422606537060 is a wasteful number, since it uses less digits than its factorization.

221422606537060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80811170415 (or 80811170413 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 46.

The spelling of 221422606537060 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, six hundred six million, five hundred thirty-seven thousand, sixty".