2021001201011 has 4 divisors (see below), whose sum is σ = 2176462831872. Its totient is φ = 1865539570152.

The previous prime is 2021001200993. The next prime is 2021001201017. The reversal of 2021001201011 is 1101021001202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021001201011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2021001200983 and 2021001201001.

It is not an unprimeable number, because it can be changed into a prime (2021001201017) 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, 77730815411 + ... + 77730815436.

It is an arithmetic number, because the mean of its divisors is an integer number (544115707968).

Almost surely, 2^{2021001201011} is an apocalyptic number.

2021001201011 is a deficient number, since it is larger than the sum of its proper divisors (155461630861).

2021001201011 is a wasteful number, since it uses less digits than its factorization.

2021001201011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155461630860.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2021001201011 its reverse (1101021001202), we get a palindrome (3122022202213).

The spelling of 2021001201011 in words is "two trillion, twenty-one billion, one million, two hundred one thousand, eleven".