221001201010 has 16 divisors (see below), whose sum is σ = 415097908416. Its totient is φ = 84556981168.

The previous prime is 221001200977. The next prime is 221001201037. The reversal of 221001201010 is 10102100122.

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 480437164 + ... + 480437623.

It is an arithmetic number, because the mean of its divisors is an integer number (25943619276).

Almost surely, 2^221001201010 is an apocalyptic number.

221001201010 is a deficient number, since it is larger than the sum of its proper divisors (194096707406).

221001201010 is a wasteful number, since it uses less digits than its factorization.

221001201010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960874817.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 221001201010 its reverse (10102100122), we get a palindrome (231103301132).

The spelling of 221001201010 in words is "two hundred twenty-one billion, one million, two hundred one thousand, ten".