222101002021 has 8 divisors (see below), whose sum is σ = 224831081664. Its totient is φ = 219372212160.

The previous prime is 222101002001. The next prime is 222101002063. The reversal of 222101002021 is 120200101222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222101002021 - 2⁷ = 222101001893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222101001992 and 222101002010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222101002001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26376 + ... + 667006.

It is an arithmetic number, because the mean of its divisors is an integer number (28103885208).

Almost surely, 2^222101002021 is an apocalyptic number.

It is an amenable number.

222101002021 is a deficient number, since it is larger than the sum of its proper divisors (2730079643).

222101002021 is an equidigital number, since it uses as much as digits as its factorization.

222101002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644891.

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

Adding to 222101002021 its reverse (120200101222), we get a palindrome (342301103243).

The spelling of 222101002021 in words is "two hundred twenty-two billion, one hundred one million, two thousand, twenty-one".