2011001020021 has 8 divisors (see below), whose sum is σ = 2298348872064. Its totient is φ = 1723668666000.

The previous prime is 2011001020019. The next prime is 2011001020037. The reversal of 2011001020021 is 1200201001102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2011001020021 - 2¹ = 2011001020019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011001020001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3595105 + ... + 4116646.

It is an arithmetic number, because the mean of its divisors is an integer number (287293609008).

Almost surely, 2^{2011001020021} is an apocalyptic number.

It is an amenable number.

2011001020021 is a deficient number, since it is larger than the sum of its proper divisors (287347852043).

2011001020021 is an equidigital number, since it uses as much as digits as its factorization.

2011001020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7749011.

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

Adding to 2011001020021 its reverse (1200201001102), we get a palindrome (3211202021123).

The spelling of 2011001020021 in words is "two trillion, eleven billion, one million, twenty thousand, twenty-one".