11021514213 has 4 divisors (see below), whose sum is σ = 14695352288. Its totient is φ = 7347676140.

The previous prime is 11021514211. The next prime is 11021514253. The reversal of 11021514213 is 31241512011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31241512011 = 3 ⋅10413837337.

It is not a de Polignac number, because 11021514213 - 2¹ = 11021514211 is a prime.

It is a super-2 number, since 2×11021514213² (a number of 21 digits) contains 22 as substring.

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 11021514213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021514211) 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, 1836919033 + ... + 1836919038.

It is an arithmetic number, because the mean of its divisors is an integer number (3673838072).

Almost surely, 2^11021514213 is an apocalyptic number.

It is an amenable number.

11021514213 is a deficient number, since it is larger than the sum of its proper divisors (3673838075).

11021514213 is an equidigital number, since it uses as much as digits as its factorization.

11021514213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3673838074.

The product of its (nonzero) digits is 240, while the sum is 21.

The spelling of 11021514213 in words is "eleven billion, twenty-one million, five hundred fourteen thousand, two hundred thirteen".