211220002203013 has 4 divisors (see below), whose sum is σ = 211220038753708. Its totient is φ = 211219965652320.

The previous prime is 211220002203011. The next prime is 211220002203071. The reversal of 211220002203013 is 310302200022112.

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 153974768543649 + 57245233659364 = 12408657^2 + 7566058^2 .

It is a cyclic number.

It is not a de Polignac number, because 211220002203013 - 2¹ = 211220002203011 is a prime.

It is a super-2 number, since 2×211220002203013² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211220002203011) 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, 7482456 + ... + 21872977.

It is an arithmetic number, because the mean of its divisors is an integer number (52805009688427).

Almost surely, 2^{211220002203013} is an apocalyptic number.

It is an amenable number.

211220002203013 is a deficient number, since it is larger than the sum of its proper divisors (36550695).

211220002203013 is an equidigital number, since it uses as much as digits as its factorization.

211220002203013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36550694.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 211220002203013 its reverse (310302200022112), we get a palindrome (521522202225125).

The spelling of 211220002203013 in words is "two hundred eleven trillion, two hundred twenty billion, two million, two hundred three thousand, thirteen".