121002211222 has 4 divisors (see below), whose sum is σ = 181503316836. Its totient is φ = 60501105610.

The previous prime is 121002211207. The next prime is 121002211237. The reversal of 121002211222 is 222112200121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 222112200121 = 7 ⋅31730314303.

It is an interprime number because it is at equal distance from previous prime (121002211207) and next prime (121002211237).

It is a super-2 number, since 2×121002211222² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121002211196 and 121002211205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30250552804 + ... + 30250552807.

It is an arithmetic number, because the mean of its divisors is an integer number (45375829209).

Almost surely, 2^121002211222 is an apocalyptic number.

121002211222 is a deficient number, since it is larger than the sum of its proper divisors (60501105614).

121002211222 is an equidigital number, since it uses as much as digits as its factorization.

121002211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60501105613.

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

Adding to 121002211222 its reverse (222112200121), we get a palindrome (343114411343).

The spelling of 121002211222 in words is "one hundred twenty-one billion, two million, two hundred eleven thousand, two hundred twenty-two".