2121201110012 has 24 divisors (see below), whose sum is σ = 3764549128032. Its totient is φ = 1045616947200.

The previous prime is 2121201109981. The next prime is 2121201110051. The reversal of 2121201110012 is 2100111021212.

It is a super-2 number, since 2×2121201110012² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6904508 + ... + 7205180.

It is an arithmetic number, because the mean of its divisors is an integer number (156856213668).

Almost surely, 2^{2121201110012} is an apocalyptic number.

It is an amenable number.

2121201110012 is a deficient number, since it is larger than the sum of its proper divisors (1643348018020).

2121201110012 is a wasteful number, since it uses less digits than its factorization.

2121201110012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325589 (or 325587 counting only the distinct ones).

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

Adding to 2121201110012 its reverse (2100111021212), we get a palindrome (4221312131224).

The spelling of 2121201110012 in words is "two trillion, one hundred twenty-one billion, two hundred one million, one hundred ten thousand, twelve".