222213001021 has 8 divisors (see below), whose sum is σ = 252953930304. Its totient is φ = 193228696320.

The previous prime is 222213001001. The next prime is 222213001093. The reversal of 222213001021 is 120100312222.

It is a happy number.

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

It is not a de Polignac number, because 222213001021 - 2²⁵ = 222179446589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222213000986 and 222213001004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222213001001) 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, 439155876 + ... + 439156381.

It is an arithmetic number, because the mean of its divisors is an integer number (31619241288).

Almost surely, 2^222213001021 is an apocalyptic number.

It is an amenable number.

222213001021 is a deficient number, since it is larger than the sum of its proper divisors (30740929283).

222213001021 is a wasteful number, since it uses less digits than its factorization.

222213001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878312291.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 222213001021 its reverse (120100312222), we get a palindrome (342313313243).

The spelling of 222213001021 in words is "two hundred twenty-two billion, two hundred thirteen million, one thousand, twenty-one".