121211001101 has 8 divisors (see below), whose sum is σ = 122010823200. Its totient is φ = 120411530928.

The previous prime is 121211001091. The next prime is 121211001133. The reversal of 121211001101 is 101100112121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121211001101 - 2¹⁰ = 121211000077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121211501101) 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, 621950 + ... + 793248.

It is an arithmetic number, because the mean of its divisors is an integer number (15251352900).

Almost surely, 2^121211001101 is an apocalyptic number.

It is an amenable number.

121211001101 is a deficient number, since it is larger than the sum of its proper divisors (799822099).

121211001101 is a wasteful number, since it uses less digits than its factorization.

121211001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175963.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 121211001101 its reverse (101100112121), we get a palindrome (222311113222).

The spelling of 121211001101 in words is "one hundred twenty-one billion, two hundred eleven million, one thousand, one hundred one".