121101202101 has 48 divisors (see below), whose sum is σ = 186923179520. Its totient is φ = 69494436000.

The previous prime is 121101202081. The next prime is 121101202141. The reversal of 121101202101 is 101202101121.

It is not a de Polignac number, because 121101202101 - 2⁵ = 121101202069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121101202141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17590806 + ... + 17597688.

Almost surely, 2^121101202101 is an apocalyptic number.

121101202101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121101202101 is a deficient number, since it is larger than the sum of its proper divisors (65821977419).

121101202101 is a wasteful number, since it uses less digits than its factorization.

121101202101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9478 (or 9467 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121101202101 its reverse (101202101121), we get a palindrome (222303303222).

It can be divided in two parts, 121 and 101202101, that multiplied together give a palindrome (12245454221).

The spelling of 121101202101 in words is "one hundred twenty-one billion, one hundred one million, two hundred two thousand, one hundred one".