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210212120211001 = 19101991211352313
BaseRepresentation
bin101111110010111111010010…
…110000001010111000111001
31000120022002020002110111201221
4233302333102300022320321
5210023103410233223001
62023030040450512041
762164216206013216
oct5762772260127071
91016262202414657
10210212120211001
1160a86506705477
121b6b0625895621
13903abc176a04c
1439ca46c7c4b0d
1519481765201a1
hexbf2fd2c0ae39

210212120211001 has 32 divisors (see below), whose sum is σ = 223802405729280. Its totient is φ = 196880606208000.

The previous prime is 210212120210993. The next prime is 210212120211007. The reversal of 210212120211001 is 100112021212012.

It is a cyclic number.

It is not a de Polignac number, because 210212120211001 - 23 = 210212120210993 is a prime.

It is a super-2 number, since 2×2102121202110012 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210212120211007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4018327221 + ... + 4018379533.

It is an arithmetic number, because the mean of its divisors is an integer number (6993825179040).

Almost surely, 2210212120211001 is an apocalyptic number.

It is an amenable number.

210212120211001 is a deficient number, since it is larger than the sum of its proper divisors (13590285518279).

210212120211001 is a wasteful number, since it uses less digits than its factorization.

210212120211001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55537.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 210212120211001 its reverse (100112021212012), we get a palindrome (310324141423013).

The spelling of 210212120211001 in words is "two hundred ten trillion, two hundred twelve billion, one hundred twenty million, two hundred eleven thousand, one".

Divisors: 1 19 101 991 1919 2113 18829 40147 52313 100091 213413 993947 1901729 2093983 4054847 5283613 39785677 51842183 100388647 110537369 211492283 985001477 2100210011 4018353377 5236060483 11164274269 99485149177 109542532679 212121211111 2081308120901 11063795800579 210212120211001