21022200111022 has 32 divisors (see below), whose sum is σ = 35727333603840. Its totient is φ = 9193723524480.

The previous prime is 21022200110983. The next prime is 21022200111037. The reversal of 21022200111022 is 22011100222012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21022200110987 and 21022200111005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172235163 + ... + 172357174.

It is an arithmetic number, because the mean of its divisors is an integer number (1116479175120).

Almost surely, 2^{21022200111022} is an apocalyptic number.

21022200111022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21022200111022 is a deficient number, since it is larger than the sum of its proper divisors (14705133492818).

21022200111022 is a wasteful number, since it uses less digits than its factorization.

21022200111022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344592456.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21022200111022 its reverse (22011100222012), we get a palindrome (43033300333034).

The spelling of 21022200111022 in words is "twenty-one trillion, twenty-two billion, two hundred million, one hundred eleven thousand, twenty-two".