122002020111 has 16 divisors (see below), whose sum is σ = 169881993216. Its totient is φ = 77734199136.

The previous prime is 122002020079. The next prime is 122002020149. The reversal of 122002020111 is 111020200221.

It is not a de Polignac number, because 122002020111 - 2⁵ = 122002020079 is a prime.

It is a super-2 number, since 2×122002020111² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122002020181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 645135 + ... + 812528.

It is an arithmetic number, because the mean of its divisors is an integer number (10617624576).

Almost surely, 2^122002020111 is an apocalyptic number.

122002020111 is a deficient number, since it is larger than the sum of its proper divisors (47879973105).

122002020111 is a wasteful number, since it uses less digits than its factorization.

122002020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1458902.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 122002020111 its reverse (111020200221), we get a palindrome (233022220332).

The spelling of 122002020111 in words is "one hundred twenty-two billion, two million, twenty thousand, one hundred eleven".