221001201220010 has 64 divisors (see below), whose sum is σ = 407471700683520. Its totient is φ = 86255934912000.

The previous prime is 221001201219977. The next prime is 221001201220027. The reversal of 221001201220010 is 10022102100122.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8734177019 + ... + 8734202321.

It is an arithmetic number, because the mean of its divisors is an integer number (6366745323180).

Almost surely, 2^{221001201220010} is an apocalyptic number.

221001201220010 is a deficient number, since it is larger than the sum of its proper divisors (186470499463510).

221001201220010 is a wasteful number, since it uses less digits than its factorization.

221001201220010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45423.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221001201220010 its reverse (10022102100122), we get a palindrome (231023303320132).

The spelling of 221001201220010 in words is "two hundred twenty-one trillion, one billion, two hundred one million, two hundred twenty thousand, ten".