122021200122011 has 4 divisors (see below), whose sum is σ = 122022196067712. Its totient is φ = 122020204176312.

The previous prime is 122021200121999. The next prime is 122021200122013. The reversal of 122021200122011 is 110221002120221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122021200122011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122021200122013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 497789051 + ... + 498034116.

It is an arithmetic number, because the mean of its divisors is an integer number (30505549016928).

Almost surely, 2^{122021200122011} is an apocalyptic number.

122021200122011 is a deficient number, since it is larger than the sum of its proper divisors (995945701).

122021200122011 is an equidigital number, since it uses as much as digits as its factorization.

122021200122011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995945700.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122021200122011 its reverse (110221002120221), we get a palindrome (232242202242232).

The spelling of 122021200122011 in words is "one hundred twenty-two trillion, twenty-one billion, two hundred million, one hundred twenty-two thousand, eleven".