121002220222 has 16 divisors (see below), whose sum is σ = 195853744800. Its totient is φ = 55736144352.

The previous prime is 121002220217. The next prime is 121002220247. The reversal of 121002220222 is 222022200121.

It is a junction number, because it is equal to n+sod(n) for n = 121002220196 and 121002220205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4613097 + ... + 4639252.

It is an arithmetic number, because the mean of its divisors is an integer number (12240859050).

Almost surely, 2^121002220222 is an apocalyptic number.

121002220222 is a deficient number, since it is larger than the sum of its proper divisors (74851524578).

121002220222 is a wasteful number, since it uses less digits than its factorization.

121002220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9252867.

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

Adding to 121002220222 its reverse (222022200121), we get a palindrome (343024420343).

It can be divided in two parts, 12100 and 2220222, that added together give a palindrome (2232322).

The spelling of 121002220222 in words is "one hundred twenty-one billion, two million, two hundred twenty thousand, two hundred twenty-two".