121222212202 has 192 divisors, whose sum is σ = 246617699328. Its totient is φ = 44198784000.

The previous prime is 121222212187. The next prime is 121222212211. The reversal of 121222212202 is 202212222121.

121222212202 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×121222212202² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121222212202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 69627052 + ... + 69628792.

It is an arithmetic number, because the mean of its divisors is an integer number (1284467184).

Almost surely, 2^121222212202 is an apocalyptic number.

121222212202 is an abundant number, since it is smaller than the sum of its proper divisors (125395487126).

121222212202 is a wasteful number, since it uses less digits than its factorization.

121222212202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1885 (or 1878 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 121222212202 its reverse (202212222121), we get a palindrome (323434434323).

The spelling of 121222212202 in words is "one hundred twenty-one billion, two hundred twenty-two million, two hundred twelve thousand, two hundred two".