222001000212101 has 4 divisors (see below), whose sum is σ = 242182909322304. Its totient is φ = 201819091101900.

The previous prime is 222001000212071. The next prime is 222001000212109. The reversal of 222001000212101 is 101212000100222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222001000212101 - 2¹⁸ = 222000999949957 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 (222001000212109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10090954555085 + ... + 10090954555106.

It is an arithmetic number, because the mean of its divisors is an integer number (60545727330576).

Almost surely, 2^{222001000212101} is an apocalyptic number.

It is an amenable number.

222001000212101 is a deficient number, since it is larger than the sum of its proper divisors (20181909110203).

222001000212101 is a wasteful number, since it uses less digits than its factorization.

222001000212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20181909110202.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 222001000212101 its reverse (101212000100222), we get a palindrome (323213000312323).

The spelling of 222001000212101 in words is "two hundred twenty-two trillion, one billion, two hundred twelve thousand, one hundred one".