100121122211101 has 4 divisors (see below), whose sum is σ = 100121279666400. Its totient is φ = 100120964755804.

The previous prime is 100121122211063. The next prime is 100121122211111. The reversal of 100121122211101 is 101112221121001.

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 a de Polignac number, because none of the positive numbers 2^k-100121122211101 is a prime.

It is a super-2 number, since 2×100121122211101² (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 (100121122211111) 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, 77769961 + ... + 79046878.

It is an arithmetic number, because the mean of its divisors is an integer number (25030319916600).

Almost surely, 2^{100121122211101} is an apocalyptic number.

It is an amenable number.

100121122211101 is a deficient number, since it is larger than the sum of its proper divisors (157455299).

100121122211101 is an equidigital number, since it uses as much as digits as its factorization.

100121122211101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157455298.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 100121122211101 its reverse (101112221121001), we get a palindrome (201233343332102).

The spelling of 100121122211101 in words is "one hundred trillion, one hundred twenty-one billion, one hundred twenty-two million, two hundred eleven thousand, one hundred one".