2121012101212 has 12 divisors (see below), whose sum is σ = 3873152532816. Its totient is φ = 1014397091840.

The previous prime is 2121012101167. The next prime is 2121012101213.

2121012101212 is nontrivially palindromic in base 10.

2121012101212 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121012101213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11527239589 + ... + 11527239772.

It is an arithmetic number, because the mean of its divisors is an integer number (322762711068).

Almost surely, 2^{2121012101212} is an apocalyptic number.

It is an amenable number.

2121012101212 is a deficient number, since it is larger than the sum of its proper divisors (1752140431604).

2121012101212 is a wasteful number, since it uses less digits than its factorization.

2121012101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23054479388 (or 23054479386 counting only the distinct ones).

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

The spelling of 2121012101212 in words is "two trillion, one hundred twenty-one billion, twelve million, one hundred one thousand, two hundred twelve".