2021121020211 has 8 divisors (see below), whose sum is σ = 2695203536784. Its totient is φ = 1347226258560.

The previous prime is 2021121020197. The next prime is 2021121020239. The reversal of 2021121020211 is 1120201211202.

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

It is not a de Polignac number, because 2021121020211 - 2¹⁹ = 2021120495923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2021121021211) 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, 46913610 + ... + 46956671.

It is an arithmetic number, because the mean of its divisors is an integer number (336900442098).

Almost surely, 2^{2021121020211} is an apocalyptic number.

2021121020211 is a deficient number, since it is larger than the sum of its proper divisors (674082516573).

2021121020211 is an equidigital number, since it uses as much as digits as its factorization.

2021121020211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93877461.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2021121020211 its reverse (1120201211202), we get a palindrome (3141322231413).

The spelling of 2021121020211 in words is "two trillion, twenty-one billion, one hundred twenty-one million, twenty thousand, two hundred eleven".