222000020121 has 32 divisors (see below), whose sum is σ = 341958993408. Its totient is φ = 126610576640.

The previous prime is 222000020107. The next prime is 222000020141. The reversal of 222000020121 is 121020000222.

It is a cyclic number.

It is not a de Polignac number, because 222000020121 - 2⁵ = 222000020089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222000020097 and 222000020106.

It is not an unprimeable number, because it can be changed into a prime (222000020141) 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, 3868786 + ... + 3925748.

It is an arithmetic number, because the mean of its divisors is an integer number (10686218544).

Almost surely, 2^222000020121 is an apocalyptic number.

It is an amenable number.

222000020121 is a deficient number, since it is larger than the sum of its proper divisors (119958973287).

222000020121 is a wasteful number, since it uses less digits than its factorization.

222000020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63941.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 222000020121 its reverse (121020000222), we get a palindrome (343020020343).

It can be divided in two parts, 2220000201 and 21, that added together give a palindrome (2220000222).

The spelling of 222000020121 in words is "two hundred twenty-two billion, twenty thousand, one hundred twenty-one".