20210000011211 has 4 divisors (see below), whose sum is σ = 20214729713592. Its totient is φ = 20205270308832.

The previous prime is 20210000011193. The next prime is 20210000011283. The reversal of 20210000011211 is 11211000001202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20210000011211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20210000011192 and 20210000011201.

It is not an unprimeable number, because it can be changed into a prime (20210000017211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2364844781 + ... + 2364853326.

It is an arithmetic number, because the mean of its divisors is an integer number (5053682428398).

Almost surely, 2^{20210000011211} is an apocalyptic number.

20210000011211 is a deficient number, since it is larger than the sum of its proper divisors (4729702381).

20210000011211 is an equidigital number, since it uses as much as digits as its factorization.

20210000011211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4729702380.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20210000011211 its reverse (11211000001202), we get a palindrome (31421000012413).

The spelling of 20210000011211 in words is "twenty trillion, two hundred ten billion, eleven thousand, two hundred eleven".