10211200220021 has 4 divisors (see below), whose sum is σ = 10301564823852. Its totient is φ = 10120835616192.

The previous prime is 10211200220009. The next prime is 10211200220069. The reversal of 10211200220021 is 12002200211201.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3222653280625 + 6988546939396 = 1795175^2 + 2643586^2 .

It is a cyclic number.

It is not a de Polignac number, because 10211200220021 - 2¹⁴ = 10211200203637 is a prime.

It is a super-3 number, since 3×10211200220021³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10211200219978 and 10211200220005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10211200220821) 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, 45182301746 + ... + 45182301971.

It is an arithmetic number, because the mean of its divisors is an integer number (2575391205963).

Almost surely, 2^{10211200220021} is an apocalyptic number.

It is an amenable number.

10211200220021 is a deficient number, since it is larger than the sum of its proper divisors (90364603831).

10211200220021 is an equidigital number, since it uses as much as digits as its factorization.

10211200220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90364603830.

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

Adding to 10211200220021 its reverse (12002200211201), we get a palindrome (22213400431222).

The spelling of 10211200220021 in words is "ten trillion, two hundred eleven billion, two hundred million, two hundred twenty thousand, twenty-one".