2222121122101 has 8 divisors (see below), whose sum is σ = 2225996740440. Its totient is φ = 2218245937152.

The previous prime is 2222121122093. The next prime is 2222121122119. The reversal of 2222121122101 is 1012211212222.

It can be written as a sum of positive squares in 4 ways, for example, as 5685009201 + 2216436112900 = 75399^2 + 1488770^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2222121122101 - 2³ = 2222121122093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222121122171) 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, 11176165 + ... + 11373253.

It is an arithmetic number, because the mean of its divisors is an integer number (278249592555).

Almost surely, 2^{2222121122101} is an apocalyptic number.

It is an amenable number.

2222121122101 is a deficient number, since it is larger than the sum of its proper divisors (3875618339).

2222121122101 is a wasteful number, since it uses less digits than its factorization.

2222121122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216695.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2222121122101 its reverse (1012211212222), we get a palindrome (3234332334323).

The spelling of 2222121122101 in words is "two trillion, two hundred twenty-two billion, one hundred twenty-one million, one hundred twenty-two thousand, one hundred one".