22021012011 has 8 divisors (see below), whose sum is σ = 29548364944. Its totient is φ = 14587166880.

The previous prime is 22021011983. The next prime is 22021012049. The reversal of 22021012011 is 11021012022.

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

It is not a de Polignac number, because 22021012011 - 2¹⁴ = 22020995627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22021011011) 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 7 ways as a sum of consecutive naturals, for example, 23376400 + ... + 23377341.

It is an arithmetic number, because the mean of its divisors is an integer number (3693545618).

Almost surely, 2^22021012011 is an apocalyptic number.

22021012011 is a deficient number, since it is larger than the sum of its proper divisors (7527352933).

22021012011 is a wasteful number, since it uses less digits than its factorization.

22021012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46753901.

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

Adding to 22021012011 its reverse (11021012022), we get a palindrome (33042024033).

It can be divided in two parts, 220210 and 12011, that added together give a triangular number (232221 = T₆₈₁).

The spelling of 22021012011 in words is "twenty-two billion, twenty-one million, twelve thousand, eleven".