20010022011 has 96 divisors (see below), whose sum is σ = 36809809920. Its totient is φ = 10218700800.

The previous prime is 20010022009. The next prime is 20010022037. The reversal of 20010022011 is 11022001002.

It is not a de Polignac number, because 20010022011 - 2¹ = 20010022009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

20010022011 is a modest number, since divided by 22011 gives 20010 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 20010021984 and 20010022002.

It is not an unprimeable number, because it can be changed into a prime (20010022051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1294971 + ... + 1310331.

It is an arithmetic number, because the mean of its divisors is an integer number (383435520).

Almost surely, 2^20010022011 is an apocalyptic number.

20010022011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20010022011 is a deficient number, since it is larger than the sum of its proper divisors (16799787909).

20010022011 is a wasteful number, since it uses less digits than its factorization.

20010022011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15457 (or 15454 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20010022011 its reverse (11022001002), we get a palindrome (31032023013).

It can be divided in two parts, 200100 and 22011, that added together give a triangular number (222111 = T₆₆₆).

The spelling of 20010022011 in words is "twenty billion, ten million, twenty-two thousand, eleven".