222102202021 has 16 divisors (see below), whose sum is σ = 268903096704. Its totient is φ = 179081040384.

The previous prime is 222102202019. The next prime is 222102202037. The reversal of 222102202021 is 120202201222.

It is a cyclic number.

It is not a de Polignac number, because 222102202021 - 2¹ = 222102202019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222102201986 and 222102202004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222102202321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260175 + ... + 715468.

It is an arithmetic number, because the mean of its divisors is an integer number (16806443544).

Almost surely, 2^222102202021 is an apocalyptic number.

It is an amenable number.

222102202021 is a deficient number, since it is larger than the sum of its proper divisors (46800894683).

222102202021 is a wasteful number, since it uses less digits than its factorization.

222102202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977580.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 222102202021 its reverse (120202201222), we get a palindrome (342304403243).

The spelling of 222102202021 in words is "two hundred twenty-two billion, one hundred two million, two hundred two thousand, twenty-one".