2021201012124 has 36 divisors (see below), whose sum is σ = 5839025146864. Its totient is φ = 577486003392.

The previous prime is 2021201012099. The next prime is 2021201012147. The reversal of 2021201012124 is 4212101021202.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×2021201012124² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2021201012097 and 2021201012106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4010319217 + ... + 4010319720.

Almost surely, 2^{2021201012124} is an apocalyptic number.

It is an amenable number.

2021201012124 is an abundant number, since it is smaller than the sum of its proper divisors (3817824134740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2021201012124 is a wasteful number, since it uses less digits than its factorization.

2021201012124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8020638954 (or 8020638949 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2021201012124 its reverse (4212101021202), we get a palindrome (6233302033326).

The spelling of 2021201012124 in words is "two trillion, twenty-one billion, two hundred one million, twelve thousand, one hundred twenty-four".