122002121011221 has 12 divisors (see below), whose sum is σ = 192245766442080. Its totient is φ = 73940679400680.

The previous prime is 122002121011213. The next prime is 122002121011223. The reversal of 122002121011221 is 122110121200221.

122002121011221 is a `hidden beast` number, since 1 + 2 + 200 + 21 + 210 + 11 + 221 = 666.

It is not a de Polignac number, because 122002121011221 - 2³ = 122002121011213 is a prime.

It is a super-2 number, since 2×122002121011221² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122002121011194 and 122002121011203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122002121011223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 616172328241 + ... + 616172328438.

It is an arithmetic number, because the mean of its divisors is an integer number (16020480536840).

Almost surely, 2^{122002121011221} is an apocalyptic number.

122002121011221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122002121011221 is a deficient number, since it is larger than the sum of its proper divisors (70243645430859).

122002121011221 is a wasteful number, since it uses less digits than its factorization.

122002121011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232344656696 (or 1232344656693 counting only the distinct ones).

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

Adding to 122002121011221 its reverse (122110121200221), we get a palindrome (244112242211442).

The spelling of 122002121011221 in words is "one hundred twenty-two trillion, two billion, one hundred twenty-one million, eleven thousand, two hundred twenty-one".