21202201111122 has 48 divisors (see below), whose sum is σ = 48405090202560. Its totient is φ = 6688620601056.

The previous prime is 21202201111121. The next prime is 21202201111123. The reversal of 21202201111122 is 22111110220212.

21202201111122 is a `hidden beast` number, since 212 + 0 + 220 + 1 + 111 + 122 = 666.

It is an interprime number because it is at equal distance from previous prime (21202201111121) and next prime (21202201111123).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 21202201111095 and 21202201111104.

It is not an unprimeable number, because it can be changed into a prime (21202201111121) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 31197253 + ... + 31869624.

It is an arithmetic number, because the mean of its divisors is an integer number (1008439379220).

Almost surely, 2^{21202201111122} is an apocalyptic number.

21202201111122 is an abundant number, since it is smaller than the sum of its proper divisors (27202889091438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21202201111122 is a wasteful number, since it uses less digits than its factorization.

21202201111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63067887 (or 63067884 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 21202201111122 its reverse (22111110220212), we get a palindrome (43313311331334).

The spelling of 21202201111122 in words is "twenty-one trillion, two hundred two billion, two hundred one million, one hundred eleven thousand, one hundred twenty-two".