122420021200211 has 4 divisors (see below), whose sum is σ = 139908595657392. Its totient is φ = 104931446743032.

The previous prime is 122420021200193. The next prime is 122420021200231. The reversal of 122420021200211 is 112002120024221.

It is a happy number.

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

It is not a de Polignac number, because 122420021200211 - 2¹⁸ = 122420020938067 is a prime.

It is a super-2 number, since 2×122420021200211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122420021200231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8744287228580 + ... + 8744287228593.

It is an arithmetic number, because the mean of its divisors is an integer number (34977148914348).

Almost surely, 2^{122420021200211} is an apocalyptic number.

122420021200211 is a deficient number, since it is larger than the sum of its proper divisors (17488574457181).

122420021200211 is an equidigital number, since it uses as much as digits as its factorization.

122420021200211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17488574457180.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 122420021200211 its reverse (112002120024221), we get a palindrome (234422141224432).

The spelling of 122420021200211 in words is "one hundred twenty-two trillion, four hundred twenty billion, twenty-one million, two hundred thousand, two hundred eleven".