1012021001011 has 16 divisors (see below), whose sum is σ = 1031663381760. Its totient is φ = 992609951200.

The previous prime is 1012021000999. The next prime is 1012021001081. The reversal of 1012021001011 is 1101001202101.

It is a cyclic number.

It is not a de Polignac number, because 1012021001011 - 2⁵ = 1012021000979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012021001081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4648356 + ... + 4861198.

It is an arithmetic number, because the mean of its divisors is an integer number (64478961360).

Almost surely, 2^{1012021001011} is an apocalyptic number.

1012021001011 is a deficient number, since it is larger than the sum of its proper divisors (19642380749).

1012021001011 is a wasteful number, since it uses less digits than its factorization.

1012021001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213386.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1012021001011 its reverse (1101001202101), we get a palindrome (2113022203112).

The spelling of 1012021001011 in words is "one trillion, twelve billion, twenty-one million, one thousand, eleven".