2011202002021 has 4 divisors (see below), whose sum is σ = 2011389467500. Its totient is φ = 2011014536544.

The previous prime is 2011202002013. The next prime is 2011202002027. The reversal of 2011202002021 is 1202002021102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 744620571396 + 1266581430625 = 862914^2 + 1125425^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011202002021 - 2³ = 2011202002013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2011202001992 and 2011202002010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011202002027) 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, 93716646 + ... + 93738103.

It is an arithmetic number, because the mean of its divisors is an integer number (502847366875).

Almost surely, 2^{2011202002021} is an apocalyptic number.

It is an amenable number.

2011202002021 is a deficient number, since it is larger than the sum of its proper divisors (187465479).

2011202002021 is a wasteful number, since it uses less digits than its factorization.

2011202002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187465478.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2011202002021 its reverse (1202002021102), we get a palindrome (3213204023123).

The spelling of 2011202002021 in words is "two trillion, eleven billion, two hundred two million, two thousand, twenty-one".