121010221100101 has 4 divisors (see below), whose sum is σ = 121013730406432. Its totient is φ = 121006711793772.

The previous prime is 121010221100059. The next prime is 121010221100117. The reversal of 121010221100101 is 101001122010121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121010221100101 - 2³³ = 121001631165509 is a prime.

It is a super-3 number, since 3×121010221100101³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121010221100141) 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, 1754601441 + ... + 1754670406.

It is an arithmetic number, because the mean of its divisors is an integer number (30253432601608).

Almost surely, 2^{121010221100101} is an apocalyptic number.

It is an amenable number.

121010221100101 is a deficient number, since it is larger than the sum of its proper divisors (3509306331).

121010221100101 is an equidigital number, since it uses as much as digits as its factorization.

121010221100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3509306330.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121010221100101 its reverse (101001122010121), we get a palindrome (222011343110222).

The spelling of 121010221100101 in words is "one hundred twenty-one trillion, ten billion, two hundred twenty-one million, one hundred thousand, one hundred one".