1210211011212 has 24 divisors (see below), whose sum is σ = 3227229363456. Its totient is φ = 345774574608.

The previous prime is 1210211011109. The next prime is 1210211011237. The reversal of 1210211011212 is 2121101120121.

It is a happy number.

It is a super-2 number, since 2×1210211011212² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1210211011191 and 1210211011200.

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 7 ways as a sum of consecutive naturals, for example, 7203636888 + ... + 7203637055.

It is an arithmetic number, because the mean of its divisors is an integer number (134467890144).

Almost surely, 2^{1210211011212} is an apocalyptic number.

1210211011212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1210211011212 is an abundant number, since it is smaller than the sum of its proper divisors (2017018352244).

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

1210211011212 is a wasteful number, since it uses less digits than its factorization.

1210211011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14407273957 (or 14407273955 counting only the distinct ones).

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

Adding to 1210211011212 its reverse (2121101120121), we get a palindrome (3331312131333).

The spelling of 1210211011212 in words is "one trillion, two hundred ten billion, two hundred eleven million, eleven thousand, two hundred twelve".