2120300020121 has 8 divisors (see below), whose sum is σ = 2169822458304. Its totient is φ = 2071130055280.

The previous prime is 2120300020093. The next prime is 2120300020127. The reversal of 2120300020121 is 1210200030212.

It is a happy number.

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 2120300020121 - 2³⁸ = 1845422113177 is a prime.

It is a super-2 number, since 2×2120300020121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120300020096 and 2120300020105.

It is not an unprimeable number, because it can be changed into a prime (2120300020127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88106165 + ... + 88130226.

It is an arithmetic number, because the mean of its divisors is an integer number (271227807288).

Almost surely, 2^{2120300020121} is an apocalyptic number.

It is an amenable number.

2120300020121 is a deficient number, since it is larger than the sum of its proper divisors (49522438183).

2120300020121 is a wasteful number, since it uses less digits than its factorization.

2120300020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176236671.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 2120300020121 its reverse (1210200030212), we get a palindrome (3330500050333).

The spelling of 2120300020121 in words is "two trillion, one hundred twenty billion, three hundred million, twenty thousand, one hundred twenty-one".