222012122211101 has 8 divisors (see below), whose sum is σ = 235072084841784. Its totient is φ = 208952206917120.

The previous prime is 222012122211079. The next prime is 222012122211239. The reversal of 222012122211101 is 101112221210222.

It can be written as a sum of positive squares in 4 ways, for example, as 74951024945476 + 147061097265625 = 8657426^2 + 12126875^2 .

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 222012122211101 - 2¹⁰ = 222012122210077 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 (222012122201101) 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, 1941890 + ... + 21161171.

It is an arithmetic number, because the mean of its divisors is an integer number (29384010605223).

Almost surely, 2^{222012122211101} is an apocalyptic number.

It is an amenable number.

222012122211101 is a deficient number, since it is larger than the sum of its proper divisors (13059962630683).

222012122211101 is a wasteful number, since it uses less digits than its factorization.

222012122211101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23668351.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 222012122211101 its reverse (101112221210222), we get a palindrome (323124343421323).

The spelling of 222012122211101 in words is "two hundred twenty-two trillion, twelve billion, one hundred twenty-two million, two hundred eleven thousand, one hundred one".