2121011320012 has 48 divisors (see below), whose sum is σ = 4011422026752. Its totient is φ = 975472266240.

The previous prime is 2121011319967. The next prime is 2121011320037. The reversal of 2121011320012 is 2100231101212.

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, 21799312 + ... + 21896392.

It is an arithmetic number, because the mean of its divisors is an integer number (83571292224).

Almost surely, 2^{2121011320012} is an apocalyptic number.

It is an amenable number.

2121011320012 is a deficient number, since it is larger than the sum of its proper divisors (1890410706740).

2121011320012 is a wasteful number, since it uses less digits than its factorization.

2121011320012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98578 (or 98576 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 2121011320012 its reverse (2100231101212), we get a palindrome (4221242421224).

The spelling of 2121011320012 in words is "two trillion, one hundred twenty-one billion, eleven million, three hundred twenty thousand, twelve".