2111212001212 has 6 divisors (see below), whose sum is σ = 3694621002128. Its totient is φ = 1055606000604.

The previous prime is 2111212001209. The next prime is 2111212001251. The reversal of 2111212001212 is 2121002121112.

It is a super-2 number, since 2×2111212001212² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263901500148 + ... + 263901500155.

Almost surely, 2^{2111212001212} is an apocalyptic number.

It is an amenable number.

2111212001212 is a deficient number, since it is larger than the sum of its proper divisors (1583409000916).

2111212001212 is a wasteful number, since it uses less digits than its factorization.

2111212001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527803000307 (or 527803000305 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2111212001212 its reverse (2121002121112), we get a palindrome (4232214122324).

The spelling of 2111212001212 in words is "two trillion, one hundred eleven billion, two hundred twelve million, one thousand, two hundred twelve".