222212102010221 has 16 divisors (see below), whose sum is σ = 226477964243328. Its totient is φ = 217985338944000.

The previous prime is 222212102010193. The next prime is 222212102010263. The reversal of 222212102010221 is 122010201212222.

It is a cyclic number.

It is not a de Polignac number, because 222212102010221 - 2¹⁰ = 222212102009197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222212102010193 and 222212102010202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222212102012221) 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, 24701285 + ... + 32474261.

It is an arithmetic number, because the mean of its divisors is an integer number (14154872765208).

Almost surely, 2^{222212102010221} is an apocalyptic number.

It is an amenable number.

222212102010221 is a deficient number, since it is larger than the sum of its proper divisors (4265862233107).

222212102010221 is a wasteful number, since it uses less digits than its factorization.

222212102010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7775492.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 222212102010221 its reverse (122010201212222), we get a palindrome (344222303222443).

The spelling of 222212102010221 in words is "two hundred twenty-two trillion, two hundred twelve billion, one hundred two million, ten thousand, two hundred twenty-one".