21202211121122 has 32 divisors (see below), whose sum is σ = 32201234083200. Its totient is φ = 10469483228160.

The previous prime is 21202211121083. The next prime is 21202211121149. The reversal of 21202211121122 is 22112111220212.

It is a junction number, because it is equal to n+sod(n) for n = 21202211121094 and 21202211121103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37394498 + ... + 37957250.

It is an arithmetic number, because the mean of its divisors is an integer number (1006288565100).

Almost surely, 2^{21202211121122} is an apocalyptic number.

21202211121122 is a deficient number, since it is larger than the sum of its proper divisors (10999022962078).

21202211121122 is a wasteful number, since it uses less digits than its factorization.

21202211121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563658.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 21202211121122 its reverse (22112111220212), we get a palindrome (43314322341334).

The spelling of 21202211121122 in words is "twenty-one trillion, two hundred two billion, two hundred eleven million, one hundred twenty-one thousand, one hundred twenty-two".