222021013212001 has 4 divisors (see below), whose sum is σ = 222021536847552. Its totient is φ = 222020489576452.

The previous prime is 222021013211983. The next prime is 222021013212101. The reversal of 222021013212001 is 100212310120222.

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 222021013212001 - 2¹⁹ = 222021012687713 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 222021013212001.

It is not an unprimeable number, because it can be changed into a prime (222021013212101) 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, 261181261 + ... + 262029946.

It is an arithmetic number, because the mean of its divisors is an integer number (55505384211888).

Almost surely, 2^{222021013212001} is an apocalyptic number.

It is an amenable number.

222021013212001 is a deficient number, since it is larger than the sum of its proper divisors (523635551).

222021013212001 is an equidigital number, since it uses as much as digits as its factorization.

222021013212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523635550.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 222021013212001 its reverse (100212310120222), we get a palindrome (322233323332223).

The spelling of 222021013212001 in words is "two hundred twenty-two trillion, twenty-one billion, thirteen million, two hundred twelve thousand, one".