21022101211022 has 16 divisors (see below), whose sum is σ = 31551701800320. Its totient is φ = 10504869094008.

The previous prime is 21022101211021. The next prime is 21022101211043. The reversal of 21022101211022 is 22011210122012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21022101211021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22871783 + ... + 23773149.

It is an arithmetic number, because the mean of its divisors is an integer number (1971981362520).

Almost surely, 2^{21022101211022} is an apocalyptic number.

21022101211022 is a deficient number, since it is larger than the sum of its proper divisors (10529600589298).

21022101211022 is a wasteful number, since it uses less digits than its factorization.

21022101211022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908215.

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

Adding to 21022101211022 its reverse (22011210122012), we get a palindrome (43033311333034).

The spelling of 21022101211022 in words is "twenty-one trillion, twenty-two billion, one hundred one million, two hundred eleven thousand, twenty-two".