2220101101221 has 16 divisors (see below), whose sum is σ = 3027110087424. Its totient is φ = 1446662960064.

The previous prime is 2220101101193. The next prime is 2220101101241. The reversal of 2220101101221 is 1221011010222.

It is not a de Polignac number, because 2220101101221 - 2²¹ = 2220099004069 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2220101101221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220101101241) 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, 10293130 + ... + 10506603.

It is an arithmetic number, because the mean of its divisors is an integer number (189194380464).

Almost surely, 2^{2220101101221} is an apocalyptic number.

It is an amenable number.

2220101101221 is a deficient number, since it is larger than the sum of its proper divisors (807008986203).

2220101101221 is a wasteful number, since it uses less digits than its factorization.

2220101101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20800540.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2220101101221 its reverse (1221011010222), we get a palindrome (3441112111443).

Subtracting from 2220101101221 its reverse (1221011010222), we obtain a palindrome (999090090999).

It can be divided in two parts, 222010 and 1101221, that added together give a palindrome (1323231).

The spelling of 2220101101221 in words is "two trillion, two hundred twenty billion, one hundred one million, one hundred one thousand, two hundred twenty-one".