2012202110021 has 16 divisors (see below), whose sum is σ = 2025693139008. Its totient is φ = 1998769478400.

The previous prime is 2012202109987. The next prime is 2012202110029. The reversal of 2012202110021 is 1200112022102.

It is a cyclic number.

It is not a de Polignac number, because 2012202110021 - 2¹⁴ = 2012202093637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2012202109978 and 2012202110005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012202110029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103813751 + ... + 103833131.

It is an arithmetic number, because the mean of its divisors is an integer number (126605821188).

Almost surely, 2^{2012202110021} is an apocalyptic number.

It is an amenable number.

2012202110021 is a deficient number, since it is larger than the sum of its proper divisors (13491028987).

2012202110021 is a wasteful number, since it uses less digits than its factorization.

2012202110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20852.

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

Adding to 2012202110021 its reverse (1200112022102), we get a palindrome (3212314132123).

The spelling of 2012202110021 in words is "two trillion, twelve billion, two hundred two million, one hundred ten thousand, twenty-one".