10100121200538 has 16 divisors (see below), whose sum is σ = 20255283937920. Its totient is φ = 3357533477376.

The previous prime is 10100121200537. The next prime is 10100121200563. The reversal of 10100121200538 is 83500212100101.

It is a super-2 number, since 2×10100121200538² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10100121200537) 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, 2293394983 + ... + 2293399386.

It is an arithmetic number, because the mean of its divisors is an integer number (1265955246120).

Almost surely, 2^{10100121200538} is an apocalyptic number.

10100121200538 is an abundant number, since it is smaller than the sum of its proper divisors (10155162737382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10100121200538 is a wasteful number, since it uses less digits than its factorization.

10100121200538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4586794741.

The product of its (nonzero) digits is 480, while the sum is 24.

Adding to 10100121200538 its reverse (83500212100101), we get a palindrome (93600333300639).

The spelling of 10100121200538 in words is "ten trillion, one hundred billion, one hundred twenty-one million, two hundred thousand, five hundred thirty-eight".