2221101011121 has 8 divisors (see below), whose sum is σ = 2961491765760. Its totient is φ = 1480722131952.

The previous prime is 2221101011119. The next prime is 2221101011147. The reversal of 2221101011121 is 1211101011222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2221101011121 - 2¹ = 2221101011119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2221101011121.

It is not an unprimeable number, because it can be changed into a prime (2221101011111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2522886 + ... + 3287423.

It is an arithmetic number, because the mean of its divisors is an integer number (370186470720).

Almost surely, 2^{2221101011121} is an apocalyptic number.

It is an amenable number.

2221101011121 is a deficient number, since it is larger than the sum of its proper divisors (740390754639).

2221101011121 is a wasteful number, since it uses less digits than its factorization.

2221101011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5937735.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2221101011121 its reverse (1211101011222), we get a palindrome (3432202022343).

It can be divided in two parts, 222110101 and 1121, that added together give a palindrome (222111222).

The spelling of 2221101011121 in words is "two trillion, two hundred twenty-one billion, one hundred one million, eleven thousand, one hundred twenty-one".