122110100021 has 8 divisors (see below), whose sum is σ = 150289353984. Its totient is φ = 96614584560.

The previous prime is 122110100017. The next prime is 122110100027. The reversal of 122110100021 is 120001011221.

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

It is not a de Polignac number, because 122110100021 - 2² = 122110100017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122110099975 and 122110100011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122110100027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 670934525 + ... + 670934706.

It is an arithmetic number, because the mean of its divisors is an integer number (18786169248).

Almost surely, 2^122110100021 is an apocalyptic number.

It is an amenable number.

122110100021 is a deficient number, since it is larger than the sum of its proper divisors (28179253963).

122110100021 is a wasteful number, since it uses less digits than its factorization.

122110100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341869251.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 122110100021 its reverse (120001011221), we get a palindrome (242111111242).

The spelling of 122110100021 in words is "one hundred twenty-two billion, one hundred ten million, one hundred thousand, twenty-one".