222021200101 has 4 divisors (see below), whose sum is σ = 222022219104. Its totient is φ = 222020181100.

The previous prime is 222021200077. The next prime is 222021200123. The reversal of 222021200101 is 101002120222.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 222021200101 - 2¹⁷ = 222021069029 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 (222021200161) 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, 35995 + ... + 667336.

It is an arithmetic number, because the mean of its divisors is an integer number (55505554776).

Almost surely, 2^222021200101 is an apocalyptic number.

It is an amenable number.

222021200101 is a deficient number, since it is larger than the sum of its proper divisors (1019003).

222021200101 is an equidigital number, since it uses as much as digits as its factorization.

222021200101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019002.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 222021200101 its reverse (101002120222), we get a palindrome (323023320323).

The spelling of 222021200101 in words is "two hundred twenty-two billion, twenty-one million, two hundred thousand, one hundred one".