2121001110212 has 48 divisors (see below), whose sum is σ = 3915414816768. Its totient is φ = 1003836773760.

The previous prime is 2121001110203. The next prime is 2121001110223. The reversal of 2121001110212 is 2120111001212.

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, 9429278 + ... + 9651594.

It is an arithmetic number, because the mean of its divisors is an integer number (81571142016).

Almost surely, 2^{2121001110212} is an apocalyptic number.

It is an amenable number.

2121001110212 is a deficient number, since it is larger than the sum of its proper divisors (1794413706556).

2121001110212 is a wasteful number, since it uses less digits than its factorization.

2121001110212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224036 (or 224034 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2121001110212 its reverse (2120111001212), we get a palindrome (4241112111424).

The spelling of 2121001110212 in words is "two trillion, one hundred twenty-one billion, one million, one hundred ten thousand, two hundred twelve".