2221000221210 has 32 divisors (see below), whose sum is σ = 5335472348352. Its totient is φ = 591703190400.

The previous prime is 2221000221133. The next prime is 2221000221217. The reversal of 2221000221210 is 121220001222.

It is a super-2 number, since 2×2221000221210² (a number of 25 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2221000221210.

It is not an unprimeable number, because it can be changed into a prime (2221000221217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35188899 + ... + 35251958.

It is an arithmetic number, because the mean of its divisors is an integer number (166733510886).

Almost surely, 2^{2221000221210} is an apocalyptic number.

2221000221210 is an abundant number, since it is smaller than the sum of its proper divisors (3114472127142).

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

2221000221210 is a wasteful number, since it uses less digits than its factorization.

2221000221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70441918.

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

Adding to 2221000221210 its reverse (121220001222), we get a palindrome (2342220222432).

The spelling of 2221000221210 in words is "two trillion, two hundred twenty-one billion, two hundred twenty-one thousand, two hundred ten".