20021010022011 has 32 divisors (see below), whose sum is σ = 28641849239808. Its totient is φ = 12395078645760.

The previous prime is 20021010022009. The next prime is 20021010022021. The reversal of 20021010022011 is 11022001012002.

It is not a de Polignac number, because 20021010022011 - 2¹ = 20021010022009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20021010022021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 326451 + ... + 6336291.

It is an arithmetic number, because the mean of its divisors is an integer number (895057788744).

Almost surely, 2^{20021010022011} is an apocalyptic number.

20021010022011 is a deficient number, since it is larger than the sum of its proper divisors (8620839217797).

20021010022011 is a wasteful number, since it uses less digits than its factorization.

20021010022011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6010731.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20021010022011 its reverse (11022001012002), we get a palindrome (31043011034013).

The spelling of 20021010022011 in words is "twenty trillion, twenty-one billion, ten million, twenty-two thousand, eleven".