122111221101 has 8 divisors (see below), whose sum is σ = 167215365984. Its totient is φ = 79207278480.

The previous prime is 122111221097. The next prime is 122111221109. The reversal of 122111221101 is 101122111221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122111221101 - 2² = 122111221097 is a prime.

It is a super-2 number, since 2×122111221101² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122111221109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550050435 + ... + 550050656.

It is an arithmetic number, because the mean of its divisors is an integer number (20901920748).

Almost surely, 2^122111221101 is an apocalyptic number.

It is an amenable number.

122111221101 is a deficient number, since it is larger than the sum of its proper divisors (45104144883).

122111221101 is a wasteful number, since it uses less digits than its factorization.

122111221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100101131.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 122111221101 its reverse (101122111221), we get a palindrome (223233332322).

It can be divided in two parts, 122111221 and 101, that multiplied together give a palindrome (12333233321).

The spelling of 122111221101 in words is "one hundred twenty-two billion, one hundred eleven million, two hundred twenty-one thousand, one hundred one".