21202122100022 has 8 divisors (see below), whose sum is σ = 31807753250400. Its totient is φ = 10599537683224.

The previous prime is 21202122100013. The next prime is 21202122100079. The reversal of 21202122100022 is 22000122120212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 761665997 + ... + 761693832.

It is an arithmetic number, because the mean of its divisors is an integer number (3975969156300).

Almost surely, 2^{21202122100022} is an apocalyptic number.

21202122100022 is a deficient number, since it is larger than the sum of its proper divisors (10605631150378).

21202122100022 is a wasteful number, since it uses less digits than its factorization.

21202122100022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523366790.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 21202122100022 its reverse (22000122120212), we get a palindrome (43202244220234).

The spelling of 21202122100022 in words is "twenty-one trillion, two hundred two billion, one hundred twenty-two million, one hundred thousand, twenty-two".