22021211220011 has 6 divisors (see below), whose sum is σ = 23392774548900. Its totient is φ = 20725845853856.

The previous prime is 22021211219989. The next prime is 22021211220031. The reversal of 22021211220011 is 11002211212022.

It is not a de Polignac number, because 22021211220011 - 2⁶ = 22021211219947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (22021211220031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38098981061 + ... + 38098981638.

It is an arithmetic number, because the mean of its divisors is an integer number (3898795758150).

Almost surely, 2^{22021211220011} is an apocalyptic number.

22021211220011 is a deficient number, since it is larger than the sum of its proper divisors (1371563328889).

22021211220011 is an equidigital number, since it uses as much as digits as its factorization.

22021211220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76197962733 (or 76197962716 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22021211220011 its reverse (11002211212022), we get a palindrome (33023422432033).

The spelling of 22021211220011 in words is "twenty-two trillion, twenty-one billion, two hundred eleven million, two hundred twenty thousand, eleven".