122002121011 has 4 divisors (see below), whose sum is σ = 122120226712. Its totient is φ = 121884015312.

The previous prime is 122002121009. The next prime is 122002121029. The reversal of 122002121011 is 110121200221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110121200221 = 9787 ⋅11251783.

It is a cyclic number.

It is not a de Polignac number, because 122002121011 - 2¹ = 122002121009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122002120982 and 122002121000.

It is not an unprimeable number, because it can be changed into a prime (122002128011) 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 3 ways as a sum of consecutive naturals, for example, 59051301 + ... + 59053366.

It is an arithmetic number, because the mean of its divisors is an integer number (30530056678).

Almost surely, 2^122002121011 is an apocalyptic number.

122002121011 is a deficient number, since it is larger than the sum of its proper divisors (118105701).

122002121011 is a wasteful number, since it uses less digits than its factorization.

122002121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118105700.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 122002121011 its reverse (110121200221), we get a palindrome (232123321232).

The spelling of 122002121011 in words is "one hundred twenty-two billion, two million, one hundred twenty-one thousand, eleven".