22011112202121 has 24 divisors (see below), whose sum is σ = 36339511890240. Its totient is φ = 12576494994336.

The previous prime is 22011112202069. The next prime is 22011112202141. The reversal of 22011112202121 is 12120221111022.

22011112202121 is a `hidden beast` number, since 220 + 1 + 1 + 11 + 220 + 212 + 1 = 666.

It is not a de Polignac number, because 22011112202121 - 2³¹ = 22008964718473 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22011112202094 and 22011112202103.

It is not an unprimeable number, because it can be changed into a prime (22011112202141) 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, 17202606 + ... + 18437783.

It is an arithmetic number, because the mean of its divisors is an integer number (1514146328760).

Almost surely, 2^{22011112202121} is an apocalyptic number.

22011112202121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22011112202121 is a deficient number, since it is larger than the sum of its proper divisors (14328399688119).

22011112202121 is a wasteful number, since it uses less digits than its factorization.

22011112202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35650205 (or 35650202 counting only the distinct ones).

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

Adding to 22011112202121 its reverse (12120221111022), we get a palindrome (34131333313143).

The spelling of 22011112202121 in words is "twenty-two trillion, eleven billion, one hundred twelve million, two hundred two thousand, one hundred twenty-one".