122122122200111 has 24 divisors (see below), whose sum is σ = 134419482876672. Its totient is φ = 110866230090000.

The previous prime is 122122122200093. The next prime is 122122122200119. The reversal of 122122122200111 is 111002221221221.

It is not a de Polignac number, because 122122122200111 - 2⁶ = 122122122200047 is a prime.

It is a super-2 number, since 2×122122122200111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122122122200119) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3235261340 + ... + 3235299086.

It is an arithmetic number, because the mean of its divisors is an integer number (5600811786528).

Almost surely, 2^{122122122200111} is an apocalyptic number.

122122122200111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122122122200111 is a deficient number, since it is larger than the sum of its proper divisors (12297360676561).

122122122200111 is a wasteful number, since it uses less digits than its factorization.

122122122200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74123 (or 74112 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 122122122200111 its reverse (111002221221221), we get a palindrome (233124343421332).

The spelling of 122122122200111 in words is "one hundred twenty-two trillion, one hundred twenty-two billion, one hundred twenty-two million, two hundred thousand, one hundred eleven".