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12120220211201 = 4313197113671621
BaseRepresentation
bin1011000001011111010101…
…1010111001100000000001
31120220200101222121121021022
42300113311122321200001
53042034202333224301
641435541410235225
72360441232651044
oct260276532714001
946820358547238
1012120220211201
11395317a376953
121438b91285b15
1369bc163b982b
142dc89c288c5b
1516041c3c3d1b
hexb05f56b9801

12120220211201 has 32 divisors (see below), whose sum is σ = 12526502224896. Its totient is φ = 11720066904000.

The previous prime is 12120220211191. The next prime is 12120220211227. The reversal of 12120220211201 is 10211202202121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12120220211201 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 12120220211201.

It is not an unprimeable number, because it can be changed into a prime (12120220213201) 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, 7477001171 + ... + 7477002791.

It is an arithmetic number, because the mean of its divisors is an integer number (391453194528).

Almost surely, 212120220211201 is an apocalyptic number.

It is an amenable number.

12120220211201 is a deficient number, since it is larger than the sum of its proper divisors (406282013695).

12120220211201 is a wasteful number, since it uses less digits than its factorization.

12120220211201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4133.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12120220211201 its reverse (10211202202121), we get a palindrome (22331422413322).

The spelling of 12120220211201 in words is "twelve trillion, one hundred twenty billion, two hundred twenty million, two hundred eleven thousand, two hundred one".

Divisors: 1 43 131 971 1367 1621 5633 41753 58781 69703 127201 179077 212351 1327357 1573991 2215907 5469643 7700311 9131093 57076351 67681613 95284001 173883767 206192821 290283817 2151645697 7477001981 8866291303 12482204131 92520764971 281865586307 12120220211201