122101440554213 has 4 divisors (see below), whose sum is σ = 122101534384908. Its totient is φ = 122101346723520.

The previous prime is 122101440554209. The next prime is 122101440554279. The reversal of 122101440554213 is 312455044101221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 117312770534404 + 4788670019809 = 10831102^2 + 2188303^2 .

It is a cyclic number.

It is not a de Polignac number, because 122101440554213 - 2² = 122101440554209 is a prime.

It is a super-2 number, since 2×122101440554213² (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 (122101440551213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44935556 + ... + 47575277.

It is an arithmetic number, because the mean of its divisors is an integer number (30525383596227).

Almost surely, 2^{122101440554213} is an apocalyptic number.

It is an amenable number.

122101440554213 is a deficient number, since it is larger than the sum of its proper divisors (93830695).

122101440554213 is an equidigital number, since it uses as much as digits as its factorization.

122101440554213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93830694.

The product of its (nonzero) digits is 38400, while the sum is 35.

Adding to 122101440554213 its reverse (312455044101221), we get a palindrome (434556484655434).

The spelling of 122101440554213 in words is "one hundred twenty-two trillion, one hundred one billion, four hundred forty million, five hundred fifty-four thousand, two hundred thirteen".