122111011021021 has 8 divisors (see below), whose sum is σ = 133223439803904. Its totient is φ = 111000486868320.

The previous prime is 122111011021019. The next prime is 122111011021187. The reversal of 122111011021021 is 120120110111221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122111011021021 - 2¹ = 122111011021019 is a prime.

It is a super-2 number, since 2×122111011021021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122111011020986 and 122111011021004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122111011021921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 476023485 + ... + 476279938.

It is an arithmetic number, because the mean of its divisors is an integer number (16652929975488).

Almost surely, 2^{122111011021021} is an apocalyptic number.

122111011021021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122111011021021 is a deficient number, since it is larger than the sum of its proper divisors (11112428782883).

122111011021021 is a wasteful number, since it uses less digits than its factorization.

122111011021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952315091.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 122111011021021 its reverse (120120110111221), we get a palindrome (242231121132242).

The spelling of 122111011021021 in words is "one hundred twenty-two trillion, one hundred eleven billion, eleven million, twenty-one thousand, twenty-one".