222211212201001 has 4 divisors (see below), whose sum is σ = 222211352033104. Its totient is φ = 222211072368900.

The previous prime is 222211212200981. The next prime is 222211212201049. The reversal of 222211212201001 is 100102212112222.

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 222211212201001 - 2⁵ = 222211212200969 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 222211212201001.

It is not an unprimeable number, because it can be changed into a prime (222211212201071) 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, 67504635 + ... + 70719856.

It is an arithmetic number, because the mean of its divisors is an integer number (55552838008276).

Almost surely, 2^{222211212201001} is an apocalyptic number.

It is an amenable number.

222211212201001 is a deficient number, since it is larger than the sum of its proper divisors (139832103).

222211212201001 is a wasteful number, since it uses less digits than its factorization.

222211212201001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139832102.

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

Adding to 222211212201001 its reverse (100102212112222), we get a palindrome (322313424313223).

The spelling of 222211212201001 in words is "two hundred twenty-two trillion, two hundred eleven billion, two hundred twelve million, two hundred one thousand, one".