121201000112101 has 64 divisors (see below), whose sum is σ = 150460269797376. Its totient is φ = 95069915136000.

The previous prime is 121201000112083. The next prime is 121201000112107. The reversal of 121201000112101 is 101211000102121.

It is a happy number.

It is not a de Polignac number, because 121201000112101 - 2²⁵ = 121200966557669 is a prime.

It is a super-2 number, since 2×121201000112101² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121201000112107) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10379458075 + ... + 10379469751.

It is an arithmetic number, because the mean of its divisors is an integer number (2350941715584).

Almost surely, 2^{121201000112101} is an apocalyptic number.

It is an amenable number.

121201000112101 is a deficient number, since it is larger than the sum of its proper divisors (29259269685275).

121201000112101 is a wasteful number, since it uses less digits than its factorization.

121201000112101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13862.

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

Adding to 121201000112101 its reverse (101211000102121), we get a palindrome (222412000214222).

The spelling of 121201000112101 in words is "one hundred twenty-one trillion, two hundred one billion, one hundred twelve thousand, one hundred one".