122021200011 has 4 divisors (see below), whose sum is σ = 162694933352. Its totient is φ = 81347466672.

The previous prime is 122021200009. The next prime is 122021200031. The reversal of 122021200011 is 110002120221.

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

It is not a de Polignac number, because 122021200011 - 2¹ = 122021200009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122021200011.

It is not an unprimeable number, because it can be changed into a prime (122021200031) 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, 20336866666 + ... + 20336866671.

It is an arithmetic number, because the mean of its divisors is an integer number (40673733338).

Almost surely, 2^122021200011 is an apocalyptic number.

122021200011 is a deficient number, since it is larger than the sum of its proper divisors (40673733341).

122021200011 is an equidigital number, since it uses as much as digits as its factorization.

122021200011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40673733340.

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

Adding to 122021200011 its reverse (110002120221), we get a palindrome (232023320232).

The spelling of 122021200011 in words is "one hundred twenty-two billion, twenty-one million, two hundred thousand, eleven".