2121020012012 has 24 divisors (see below), whose sum is σ = 4049863183632. Its totient is φ = 963946872000.

The previous prime is 2121020011973. The next prime is 2121020012053. The reversal of 2121020012012 is 2102100201212.

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, 3547943 + ... + 4102430.

It is an arithmetic number, because the mean of its divisors is an integer number (168744299318).

Almost surely, 2^{2121020012012} is an apocalyptic number.

2121020012012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2121020012012 is a deficient number, since it is larger than the sum of its proper divisors (1928843171620).

2121020012012 is a wasteful number, since it uses less digits than its factorization.

2121020012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7656689 (or 7656687 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2121020012012 its reverse (2102100201212), we get a palindrome (4223120213224).

It can be divided in two parts, 21210200 and 12012, that added together give a palindrome (21222212).

The spelling of 2121020012012 in words is "two trillion, one hundred twenty-one billion, twenty million, twelve thousand, twelve".