121201313101 has 16 divisors (see below), whose sum is σ = 140556571200. Its totient is φ = 103350384000.

The previous prime is 121201313099. The next prime is 121201313113. The reversal of 121201313101 is 101313102121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 121201313101 - 2¹ = 121201313099 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 (121201313131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2849736 + ... + 2891953.

It is an arithmetic number, because the mean of its divisors is an integer number (8784785700).

Almost surely, 2^121201313101 is an apocalyptic number.

121201313101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121201313101 is a deficient number, since it is larger than the sum of its proper divisors (19355258099).

121201313101 is a wasteful number, since it uses less digits than its factorization.

121201313101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5741820.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 121201313101 its reverse (101313102121), we get a palindrome (222514415222).

The spelling of 121201313101 in words is "one hundred twenty-one billion, two hundred one million, three hundred thirteen thousand, one hundred one".