20213145552211 has 8 divisors (see below), whose sum is σ = 20683377526064. Its totient is φ = 19742920797600.

The previous prime is 20213145552191. The next prime is 20213145552253. The reversal of 20213145552211 is 11225554131202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20213145552211 - 2²⁵ = 20213111997779 is a prime.

It is a super-2 number, since 2×20213145552211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20213145552511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4080805 + ... + 7555081.

It is an arithmetic number, because the mean of its divisors is an integer number (2585422190758).

Almost surely, 2^{20213145552211} is an apocalyptic number.

20213145552211 is a deficient number, since it is larger than the sum of its proper divisors (470231973853).

20213145552211 is a wasteful number, since it uses less digits than its factorization.

20213145552211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3609621.

The product of its (nonzero) digits is 24000, while the sum is 34.

Adding to 20213145552211 its reverse (11225554131202), we get a palindrome (31438699683413).

The spelling of 20213145552211 in words is "twenty trillion, two hundred thirteen billion, one hundred forty-five million, five hundred fifty-two thousand, two hundred eleven".