222002021121 has 32 divisors (see below), whose sum is σ = 302081672832. Its totient is φ = 144990881280.

The previous prime is 222002021099. The next prime is 222002021141. The reversal of 222002021121 is 121120200222.

It is not a de Polignac number, because 222002021121 - 2⁷ = 222002020993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222002021121.

It is not an unprimeable number, because it can be changed into a prime (222002021141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52319826 + ... + 52324068.

It is an arithmetic number, because the mean of its divisors is an integer number (9440052276).

Almost surely, 2^222002021121 is an apocalyptic number.

It is an amenable number.

222002021121 is a deficient number, since it is larger than the sum of its proper divisors (80079651711).

222002021121 is a wasteful number, since it uses less digits than its factorization.

222002021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5873.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 222002021121 its reverse (121120200222), we get a palindrome (343122221343).

The spelling of 222002021121 in words is "two hundred twenty-two billion, two million, twenty-one thousand, one hundred twenty-one".