222220222101001 has 4 divisors (see below), whose sum is σ = 222220568290000. Its totient is φ = 222219875912004.

The previous prime is 222220222100917. The next prime is 222220222101079. The reversal of 222220222101001 is 100101222022222.

222220222101001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 222220222101001 - 2⁴⁵ = 187035850012169 is a prime.

It is a super-2 number, since 2×222220222101001² (a number of 29 digits) contains 22 as substring.

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 222220222101001.

It is not an unprimeable number, because it can be changed into a prime (222220222105001) 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, 172129851 + ... + 173416048.

It is an arithmetic number, because the mean of its divisors is an integer number (55555142072500).

Almost surely, 2^{222220222101001} is an apocalyptic number.

It is an amenable number.

222220222101001 is a deficient number, since it is larger than the sum of its proper divisors (346188999).

222220222101001 is an equidigital number, since it uses as much as digits as its factorization.

222220222101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346188998.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222220222101001 its reverse (100101222022222), we get a palindrome (322321444123223).

The spelling of 222220222101001 in words is "two hundred twenty-two trillion, two hundred twenty billion, two hundred twenty-two million, one hundred one thousand, one".