221202101121122 has 32 divisors (see below), whose sum is σ = 362965107697920. Its totient is φ = 100269195914880.

The previous prime is 221202101121049. The next prime is 221202101121167. The reversal of 221202101121122 is 221121101202122.

It is a junction number, because it is equal to n+sod(n) for n = 221202101121094 and 221202101121103.

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, 258400904 + ... + 259255532.

It is an arithmetic number, because the mean of its divisors is an integer number (11342659615560).

Almost surely, 2^{221202101121122} is an apocalyptic number.

221202101121122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221202101121122 is a deficient number, since it is larger than the sum of its proper divisors (141763006576798).

221202101121122 is a wasteful number, since it uses less digits than its factorization.

221202101121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887066.

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

Adding to 221202101121122 its reverse (221121101202122), we get a palindrome (442323202323244).

The spelling of 221202101121122 in words is "two hundred twenty-one trillion, two hundred two billion, one hundred one million, one hundred twenty-one thousand, one hundred twenty-two".