10212020221211 has 4 divisors (see below), whose sum is σ = 10212070947624. Its totient is φ = 10211969494800.

The previous prime is 10212020221147. The next prime is 10212020221223. The reversal of 10212020221211 is 11212202021201.

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

It is a cyclic number.

It is not a de Polignac number, because 10212020221211 - 2⁶ = 10212020221147 is a prime.

It is a super-3 number, since 3×10212020221211³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10212020221211.

It is not an unprimeable number, because it can be changed into a prime (10212020221111) 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, 25060025 + ... + 25464266.

It is an arithmetic number, because the mean of its divisors is an integer number (2553017736906).

Almost surely, 2^{10212020221211} is an apocalyptic number.

10212020221211 is a deficient number, since it is larger than the sum of its proper divisors (50726413).

10212020221211 is an equidigital number, since it uses as much as digits as its factorization.

10212020221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50726412.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 10212020221211 its reverse (11212202021201), we get a palindrome (21424222242412).

The spelling of 10212020221211 in words is "ten trillion, two hundred twelve billion, twenty million, two hundred twenty-one thousand, two hundred eleven".