122020221101 has 4 divisors (see below), whose sum is σ = 123228342204. Its totient is φ = 120812100000.

The previous prime is 122020221077. The next prime is 122020221107. The reversal of 122020221101 is 101122020221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101122020221 = 101 ⋅1001208121.

It can be written as a sum of positive squares in 2 ways, for example, as 50512113001 + 71508108100 = 224749^2 + 267410^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122020221101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122020221107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 604060400 + ... + 604060601.

It is an arithmetic number, because the mean of its divisors is an integer number (30807085551).

Almost surely, 2^122020221101 is an apocalyptic number.

It is an amenable number.

122020221101 is a deficient number, since it is larger than the sum of its proper divisors (1208121103).

122020221101 is a wasteful number, since it uses less digits than its factorization.

122020221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208121102.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 122020221101 its reverse (101122020221), we get a palindrome (223142241322).

It can be divided in two parts, 122020221 and 101, that multiplied together give a palindrome (12324042321).

The spelling of 122020221101 in words is "one hundred twenty-two billion, twenty million, two hundred twenty-one thousand, one hundred one".