2221100021210 has 64 divisors (see below), whose sum is σ = 4656338410752. Its totient is φ = 746989840896.

The previous prime is 2221100021207. The next prime is 2221100021213. The reversal of 2221100021210 is 121200011222.

It is an interprime number because it is at equal distance from previous prime (2221100021207) and next prime (2221100021213).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (2221100021213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17719577 + ... + 17844483.

It is an arithmetic number, because the mean of its divisors is an integer number (72755287668).

Almost surely, 2^{2221100021210} is an apocalyptic number.

2221100021210 is an abundant number, since it is smaller than the sum of its proper divisors (2435238389542).

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

2221100021210 is a wasteful number, since it uses less digits than its factorization.

2221100021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129767.

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

Adding to 2221100021210 its reverse (121200011222), we get a palindrome (2342300032432).

The spelling of 2221100021210 in words is "two trillion, two hundred twenty-one billion, one hundred million, twenty-one thousand, two hundred ten".