222111000002221 has 16 divisors (see below), whose sum is σ = 242557644211776. Its totient is φ = 201706853040000.

The previous prime is 222111000002207. The next prime is 222111000002363. The reversal of 222111000002221 is 122200000111222.

It is a happy number.

222111000002221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 222111000002221 - 2⁴³ = 213314906980013 is a prime.

It is a super-3 number, since 3×222111000002221³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222111000002195 and 222111000002204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222111000006221) 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, 106822006 + ... + 108881416.

It is an arithmetic number, because the mean of its divisors is an integer number (15159852763236).

Almost surely, 2^{222111000002221} is an apocalyptic number.

It is an amenable number.

222111000002221 is a deficient number, since it is larger than the sum of its proper divisors (20446644209555).

222111000002221 is a wasteful number, since it uses less digits than its factorization.

222111000002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2069724.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222111000002221 its reverse (122200000111222), we get a palindrome (344311000113443).

The spelling of 222111000002221 in words is "two hundred twenty-two trillion, one hundred eleven billion, two thousand, two hundred twenty-one".