2120020122121 has 8 divisors (see below), whose sum is σ = 2312767643904. Its totient is φ = 1927275670320.

The previous prime is 2120020122109. The next prime is 2120020122127. The reversal of 2120020122121 is 1212210200212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2120020122121 - 2¹⁵ = 2120020089353 is a prime.

It is a super-3 number, since 3×2120020122121³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120020122095 and 2120020122104.

It is not an unprimeable number, because it can be changed into a prime (2120020122127) 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, 819016 + ... + 2216038.

It is an arithmetic number, because the mean of its divisors is an integer number (289095955488).

Almost surely, 2^{2120020122121} is an apocalyptic number.

It is an amenable number.

2120020122121 is a deficient number, since it is larger than the sum of its proper divisors (192747521783).

2120020122121 is a wasteful number, since it uses less digits than its factorization.

2120020122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534991.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2120020122121 its reverse (1212210200212), we get a palindrome (3332230322333).

The spelling of 2120020122121 in words is "two trillion, one hundred twenty billion, twenty million, one hundred twenty-two thousand, one hundred twenty-one".