2120001210121 has 8 divisors (see below), whose sum is σ = 2233118210400. Its totient is φ = 2007038008800.

The previous prime is 2120001210073. The next prime is 2120001210133. The reversal of 2120001210121 is 1210121000212.

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 2120001210121 - 2²¹ = 2119999112969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120001210191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38421436 + ... + 38476573.

It is an arithmetic number, because the mean of its divisors is an integer number (279139776300).

Almost surely, 2^{2120001210121} is an apocalyptic number.

It is an amenable number.

2120001210121 is a deficient number, since it is larger than the sum of its proper divisors (113117000279).

2120001210121 is a wasteful number, since it uses less digits than its factorization.

2120001210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76899479.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2120001210121 its reverse (1210121000212), we get a palindrome (3330122210333).

The spelling of 2120001210121 in words is "two trillion, one hundred twenty billion, one million, two hundred ten thousand, one hundred twenty-one".