122020011 has 12 divisors (see below), whose sum is σ = 178666488. Its totient is φ = 80231904.

The previous prime is 122020001. The next prime is 122020051. The reversal of 122020011 is 110020221.

It is not a de Polignac number, because 122020011 - 2²⁶ = 54911147 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 122019975 and 122020002.

It is not an unprimeable number, because it can be changed into a prime (122020001) 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, 92205 + ... + 93518.

It is an arithmetic number, because the mean of its divisors is an integer number (14888874).

Almost surely, 2^122020011 is an apocalyptic number.

122020011 is a deficient number, since it is larger than the sum of its proper divisors (56646477).

122020011 is a wasteful number, since it uses less digits than its factorization.

122020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185802 (or 185799 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 122020011 is about 11046.2668354517. The cubic root of 122020011 is about 495.9946818607.

Adding to 122020011 its reverse (110020221), we get a palindrome (232040232).

The spelling of 122020011 in words is "one hundred twenty-two million, twenty thousand, eleven".