121002213222 has 96 divisors (see below), whose sum is σ = 302741712000. Its totient is φ = 34543221120.

The previous prime is 121002213197. The next prime is 121002213247. The reversal of 121002213222 is 222312200121.

121002213222 is a `hidden beast` number, since 121 + 0 + 0 + 221 + 322 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (121002213197) and next prime (121002213247).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 121002213195 and 121002213204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 583554 + ... + 763242.

It is an arithmetic number, because the mean of its divisors is an integer number (3153559500).

Almost surely, 2^121002213222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121002213222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151370856000).

121002213222 is an abundant number, since it is smaller than the sum of its proper divisors (181739498778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121002213222 is a wasteful number, since it uses less digits than its factorization.

121002213222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179906 (or 179903 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 121002213222 its reverse (222312200121), we get a palindrome (343314413343).

The spelling of 121002213222 in words is "one hundred twenty-one billion, two million, two hundred thirteen thousand, two hundred twenty-two".