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212020231211 = 8317021150077
BaseRepresentation
bin1100010101110101100…
…0111111110000101011
3202021021001110200211222
43011131120333300223
511433204134344321
6241222321212255
721214026141605
oct3053530776053
9667231420758
10212020231211
1181a0a990888
123511119108b
1316cbb718419
14a394688175
1557ad88e3ab
hex315d63fc2b

212020231211 has 8 divisors (see below), whose sum is σ = 214588728144. Its totient is φ = 209452068640.

The previous prime is 212020231187. The next prime is 212020231237. The reversal of 212020231211 is 112132020212.

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 212020231211 - 26 = 212020231147 is a prime.

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 212020231211.

It is not an unprimeable number, because it can be changed into a prime (212020231261) 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, 1337705 + ... + 1487781.

It is an arithmetic number, because the mean of its divisors is an integer number (26823591018).

Almost surely, 2212020231211 is an apocalyptic number.

212020231211 is a deficient number, since it is larger than the sum of its proper divisors (2568496933).

212020231211 is a wasteful number, since it uses less digits than its factorization.

212020231211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167181.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 212020231211 its reverse (112132020212), we get a palindrome (324152251423).

The spelling of 212020231211 in words is "two hundred twelve billion, twenty million, two hundred thirty-one thousand, two hundred eleven".

Divisors: 1 83 17021 150077 1412743 12456391 2554460617 212020231211