1210011121212 has 48 divisors (see below), whose sum is σ = 2907440592672. Its totient is φ = 391383878400.

The previous prime is 1210011121201. The next prime is 1210011121217. The reversal of 1210011121212 is 2121211100121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1210011121191 and 1210011121200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210011121217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3487539 + ... + 3818762.

It is an arithmetic number, because the mean of its divisors is an integer number (60571679014).

Almost surely, 2^{1210011121212} is an apocalyptic number.

1210011121212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1210011121212 is an abundant number, since it is smaller than the sum of its proper divisors (1697429471460).

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

1210011121212 is a wasteful number, since it uses less digits than its factorization.

1210011121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7306718 (or 7306716 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1210011121212 its reverse (2121211100121), we get a palindrome (3331222221333).

The spelling of 1210011121212 in words is "one trillion, two hundred ten billion, eleven million, one hundred twenty-one thousand, two hundred twelve".