2011000012021 has 64 divisors (see below), whose sum is σ = 2776161411072. Its totient is φ = 1405978560000.

The previous prime is 2011000011997. The next prime is 2011000012037. The reversal of 2011000012021 is 1202100001102.

It is not a de Polignac number, because 2011000012021 - 2²¹ = 2010997914869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2011000011989 and 2011000012007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011000012121) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11031706 + ... + 11212516.

It is an arithmetic number, because the mean of its divisors is an integer number (43377522048).

Almost surely, 2^{2011000012021} is an apocalyptic number.

It is an amenable number.

2011000012021 is a deficient number, since it is larger than the sum of its proper divisors (765161399051).

2011000012021 is a wasteful number, since it uses less digits than its factorization.

2011000012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181154.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 2011000012021 its reverse (1202100001102), we get a palindrome (3213100013123).

The spelling of 2011000012021 in words is "two trillion, eleven billion, twelve thousand, twenty-one".