221202212010 has 32 divisors (see below), whose sum is σ = 571722641280. Its totient is φ = 54449775168.

The previous prime is 221202211943. The next prime is 221202212029. The reversal of 221202212010 is 10212202122.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283592190 + ... + 283592969.

It is an arithmetic number, because the mean of its divisors is an integer number (17866332540).

Almost surely, 2^221202212010 is an apocalyptic number.

221202212010 is an abundant number, since it is smaller than the sum of its proper divisors (350520429270).

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

221202212010 is a wasteful number, since it uses less digits than its factorization.

221202212010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567185182.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 221202212010 its reverse (10212202122), we get a palindrome (231414414132).

The spelling of 221202212010 in words is "two hundred twenty-one billion, two hundred two million, two hundred twelve thousand, ten".