121003210212 has 24 divisors (see below), whose sum is σ = 287126263200. Its totient is φ = 39650769216.

The previous prime is 121003210109. The next prime is 121003210217. The reversal of 121003210212 is 212012300121.

It is a super-2 number, since 2×121003210212² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121003210191 and 121003210200.

It is not an unprimeable number, because it can be changed into a prime (121003210217) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 85453537 + ... + 85454952.

It is an arithmetic number, because the mean of its divisors is an integer number (11963594300).

Almost surely, 2^121003210212 is an apocalyptic number.

121003210212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121003210212 is an abundant number, since it is smaller than the sum of its proper divisors (166123052988).

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

121003210212 is a wasteful number, since it uses less digits than its factorization.

121003210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170908555 (or 170908553 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 121003210212 its reverse (212012300121), we get a palindrome (333015510333).

The spelling of 121003210212 in words is "one hundred twenty-one billion, three million, two hundred ten thousand, two hundred twelve".