122021121011 has 8 divisors (see below), whose sum is σ = 123303343824. Its totient is φ = 120740351200.

The previous prime is 122021120957. The next prime is 122021121043. The reversal of 122021121011 is 110121120221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122021121011 is a prime.

It is a super-2 number, since 2×122021121011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122021121071) 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 7 ways as a sum of consecutive naturals, for example, 194000 + ... + 530733.

It is an arithmetic number, because the mean of its divisors is an integer number (15412917978).

Almost surely, 2^122021121011 is an apocalyptic number.

122021121011 is a deficient number, since it is larger than the sum of its proper divisors (1282222813).

122021121011 is a wasteful number, since it uses less digits than its factorization.

122021121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726501.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 122021121011 its reverse (110121120221), we get a palindrome (232142241232).

The spelling of 122021121011 in words is "one hundred twenty-two billion, twenty-one million, one hundred twenty-one thousand, eleven".