222202111212001 has 4 divisors (see below), whose sum is σ = 222202152198400. Its totient is φ = 222202070225604.

The previous prime is 222202111211987. The next prime is 222202111212047. The reversal of 222202111212001 is 100212111202222.

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 222202111212001 - 2¹⁵ = 222202111179233 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 222202111212001.

It is not an unprimeable number, because it can be changed into a prime (222202111212071) 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, 10847961 + ... + 23708278.

It is an arithmetic number, because the mean of its divisors is an integer number (55550538049600).

Almost surely, 2^{222202111212001} is an apocalyptic number.

It is an amenable number.

222202111212001 is a deficient number, since it is larger than the sum of its proper divisors (40986399).

222202111212001 is an equidigital number, since it uses as much as digits as its factorization.

222202111212001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40986398.

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

Adding to 222202111212001 its reverse (100212111202222), we get a palindrome (322414222414223).

The spelling of 222202111212001 in words is "two hundred twenty-two trillion, two hundred two billion, one hundred eleven million, two hundred twelve thousand, one".