2120101202021 has 8 divisors (see below), whose sum is σ = 2448886950144. Its totient is φ = 1813990333120.

The previous prime is 2120101202003. The next prime is 2120101202027. The reversal of 2120101202021 is 1202021010212.

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 2120101202021 - 2⁶ = 2120101201957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120101201987 and 2120101202005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120101202027) 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, 5668719605 + ... + 5668719978.

It is an arithmetic number, because the mean of its divisors is an integer number (306110868768).

Almost surely, 2^{2120101202021} is an apocalyptic number.

It is an amenable number.

2120101202021 is a deficient number, since it is larger than the sum of its proper divisors (328785748123).

2120101202021 is a wasteful number, since it uses less digits than its factorization.

2120101202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11337439611.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2120101202021 its reverse (1202021010212), we get a palindrome (3322122212233).

The spelling of 2120101202021 in words is "two trillion, one hundred twenty billion, one hundred one million, two hundred two thousand, twenty-one".