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12211200101201 = 99712247943933
BaseRepresentation
bin1011000110110010010000…
…1111101000101101010001
31121020101020112022212202212
42301230210033220231101
53100032014211214301
641545425313121505
72400141631160543
oct261544417505521
947211215285685
1012211200101201
113988817125892
121452742259295
136a768522777a
1430304d37b693
151629947ad4bb
hexb1b243e8b51

12211200101201 has 4 divisors (see below), whose sum is σ = 12223448046132. Its totient is φ = 12198952156272.

The previous prime is 12211200101197. The next prime is 12211200101257. The reversal of 12211200101201 is 10210100211221.

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 9831736513600 + 2379463587601 = 3135560^2 + 1542551^2 .

It is a cyclic number.

It is not a de Polignac number, because 12211200101201 - 22 = 12211200101197 is a prime.

It is a super-2 number, since 2×122112001012012 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12211208101201) 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, 6123970970 + ... + 6123972963.

It is an arithmetic number, because the mean of its divisors is an integer number (3055862011533).

Almost surely, 212211200101201 is an apocalyptic number.

It is an amenable number.

12211200101201 is a deficient number, since it is larger than the sum of its proper divisors (12247944931).

12211200101201 is an equidigital number, since it uses as much as digits as its factorization.

12211200101201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12247944930.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12211200101201 its reverse (10210100211221), we get a palindrome (22421300312422).

The spelling of 12211200101201 in words is "twelve trillion, two hundred eleven billion, two hundred million, one hundred one thousand, two hundred one".

Divisors: 1 997 12247943933 12211200101201