121012002110121 has 32 divisors (see below), whose sum is σ = 162508501463040. Its totient is φ = 80096431800384.

The previous prime is 121012002110113. The next prime is 121012002110201. The reversal of 121012002110121 is 121011200210121.

It is a happy number.

It is not a de Polignac number, because 121012002110121 - 2³ = 121012002110113 is a prime.

It is a super-2 number, since 2×121012002110121² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121012002110121.

It is not an unprimeable number, because it can be changed into a prime (121012002160121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2036557950 + ... + 2036617368.

It is an arithmetic number, because the mean of its divisors is an integer number (5078390670720).

Almost surely, 2^{121012002110121} is an apocalyptic number.

It is an amenable number.

121012002110121 is a deficient number, since it is larger than the sum of its proper divisors (41496499352919).

121012002110121 is a wasteful number, since it uses less digits than its factorization.

121012002110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65005.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 121012002110121 its reverse (121011200210121), we get a palindrome (242023202320242).

The spelling of 121012002110121 in words is "one hundred twenty-one trillion, twelve billion, two million, one hundred ten thousand, one hundred twenty-one".