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1210112020001 = 2352613566087
BaseRepresentation
bin10001100111000000010…
…011000000111000100001
311021200111210020221122202
4101213000103000320201
5124311302134120001
62323530124142545
7153266463311633
oct21470023007041
94250453227582
101210112020001
11427229762415
12176640097a55
138a161566ab1
14427d94caa53
152172782496b
hex119c04c0e21

1210112020001 has 4 divisors (see below), whose sum is σ = 1262725586112. Its totient is φ = 1157498453892.

The previous prime is 1210112019979. The next prime is 1210112020021. The reversal of 1210112020001 is 1000202110121.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1210112020001 is a prime.

It is a super-2 number, since 2×12101120200012 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1210112020021) 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, 26306783021 + ... + 26306783066.

It is an arithmetic number, because the mean of its divisors is an integer number (315681396528).

Almost surely, 21210112020001 is an apocalyptic number.

It is an amenable number.

1210112020001 is a deficient number, since it is larger than the sum of its proper divisors (52613566111).

1210112020001 is an equidigital number, since it uses as much as digits as its factorization.

1210112020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52613566110.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1210112020001 its reverse (1000202110121), we get a palindrome (2210314130122).

The spelling of 1210112020001 in words is "one trillion, two hundred ten billion, one hundred twelve million, twenty thousand, one".

Divisors: 1 23 52613566087 1210112020001