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220102011031201 = 1316930923925477
BaseRepresentation
bin110010000010111001111110…
…001011101000111010100001
31001212022112202120211212122221
4302002321332023220322201
5212322122404310444301
62100041245030031041
764234563005652565
oct6202717613507241
91055275676755587
10220102011031201
11641498141a7a42
12208292b21a8481
1395a76b88bc730
143c4cdcc02d6a5
151a6a5599a0da1
hexc82e7e2e8ea1

220102011031201 has 4 divisors (see below), whose sum is σ = 237032934956692. Its totient is φ = 203171087105712.

The previous prime is 220102011031099. The next prime is 220102011031247. The reversal of 220102011031201 is 102130110201022.

220102011031201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 51681936670225 + 168420074360976 = 7189015^2 + 12977676^2 .

It is a cyclic number.

It is not a de Polignac number, because 220102011031201 - 29 = 220102011030689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220102011031271) 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, 8465461962726 + ... + 8465461962751.

It is an arithmetic number, because the mean of its divisors is an integer number (59258233739173).

Almost surely, 2220102011031201 is an apocalyptic number.

It is an amenable number.

220102011031201 is a deficient number, since it is larger than the sum of its proper divisors (16930923925491).

220102011031201 is a wasteful number, since it uses less digits than its factorization.

220102011031201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16930923925490.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 220102011031201 its reverse (102130110201022), we get a palindrome (322232121232223).

The spelling of 220102011031201 in words is "two hundred twenty trillion, one hundred two billion, eleven million, thirty-one thousand, two hundred one".

Divisors: 1 13 16930923925477 220102011031201