21022211122202 has 16 divisors (see below), whose sum is σ = 31563364664832. Its totient is φ = 10501090205760.

The previous prime is 21022211122201. The next prime is 21022211122223. The reversal of 21022211122202 is 20222111222012.

It is not an unprimeable number, because it can be changed into a prime (21022211122201) 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, 73845677 + ... + 74129807.

It is an arithmetic number, because the mean of its divisors is an integer number (1972710291552).

Almost surely, 2^{21022211122202} is an apocalyptic number.

21022211122202 is a deficient number, since it is larger than the sum of its proper divisors (10541153542630).

21022211122202 is a wasteful number, since it uses less digits than its factorization.

21022211122202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319253.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 21022211122202 its reverse (20222111222012), we get a palindrome (41244322344214).

The spelling of 21022211122202 in words is "twenty-one trillion, twenty-two billion, two hundred eleven million, one hundred twenty-two thousand, two hundred two".