2201221221101 has 16 divisors (see below), whose sum is σ = 2677839465600. Its totient is φ = 1767374028288.

The previous prime is 2201221220999. The next prime is 2201221221113. The reversal of 2201221221101 is 1011221221022.

It is a cyclic number.

It is not a de Polignac number, because 2201221221101 - 2³⁸ = 1926343314157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2201221221101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201221226101) 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, 92968700 + ... + 92992373.

It is an arithmetic number, because the mean of its divisors is an integer number (167364966600).

Almost surely, 2^{2201221221101} is an apocalyptic number.

It is an amenable number.

2201221221101 is a deficient number, since it is larger than the sum of its proper divisors (476618244499).

2201221221101 is a wasteful number, since it uses less digits than its factorization.

2201221221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185961188.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2201221221101 its reverse (1011221221022), we get a palindrome (3212442442123).

The spelling of 2201221221101 in words is "two trillion, two hundred one billion, two hundred twenty-one million, two hundred twenty-one thousand, one hundred one".