22211001021 has 32 divisors (see below), whose sum is σ = 32439888000. Its totient is φ = 13405927680.

The previous prime is 22211001019. The next prime is 22211001037. The reversal of 22211001021 is 12010011222.

It is not a de Polignac number, because 22211001021 - 2¹ = 22211001019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22211000988 and 22211001006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22211001011) 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, 14338155 + ... + 14339703.

It is an arithmetic number, because the mean of its divisors is an integer number (1013746500).

Almost surely, 2^22211001021 is an apocalyptic number.

It is an amenable number.

22211001021 is a deficient number, since it is larger than the sum of its proper divisors (10228886979).

22211001021 is a wasteful number, since it uses less digits than its factorization.

22211001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3069.

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

Adding to 22211001021 its reverse (12010011222), we get a palindrome (34221012243).

The spelling of 22211001021 in words is "twenty-two billion, two hundred eleven million, one thousand, twenty-one".