122101001421 has 16 divisors (see below), whose sum is σ = 189108812928. Its totient is φ = 68628196800.

The previous prime is 122101001419. The next prime is 122101001453. The reversal of 122101001421 is 124100101221.

It is not a de Polignac number, because 122101001421 - 2¹ = 122101001419 is a prime.

It is a super-2 number, since 2×122101001421² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 122101001421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122101001401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47657190 + ... + 47659751.

It is an arithmetic number, because the mean of its divisors is an integer number (11819300808).

Almost surely, 2^122101001421 is an apocalyptic number.

It is an amenable number.

122101001421 is a deficient number, since it is larger than the sum of its proper divisors (67007811507).

122101001421 is an equidigital number, since it uses as much as digits as its factorization.

122101001421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95317012.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 122101001421 its reverse (124100101221), we get a palindrome (246201102642).

The spelling of 122101001421 in words is "one hundred twenty-two billion, one hundred one million, one thousand, four hundred twenty-one".