2121211010212 has 48 divisors (see below), whose sum is σ = 4466268656640. Its totient is φ = 861135324192.

The previous prime is 2121211010209. The next prime is 2121211010227. The reversal of 2121211010212 is 2120101121212.

It is a super-3 number, since 3×2121211010212³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4055763 + ... + 4548805.

It is an arithmetic number, because the mean of its divisors is an integer number (93047263680).

Almost surely, 2^{2121211010212} is an apocalyptic number.

It is an amenable number.

2121211010212 is an abundant number, since it is smaller than the sum of its proper divisors (2345057646428).

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

2121211010212 is a wasteful number, since it uses less digits than its factorization.

2121211010212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501160 (or 501158 counting only the distinct ones).

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

Adding to 2121211010212 its reverse (2120101121212), we get a palindrome (4241312131424).

The spelling of 2121211010212 in words is "two trillion, one hundred twenty-one billion, two hundred eleven million, ten thousand, two hundred twelve".