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1201032234221 = 1307918922903
BaseRepresentation
bin10001011110100011000…
…110011000010011101101
311020211002000001001010112
4101132203012120103231
5124134203222443341
62315425132545405
7152525461356161
oct21364306302355
94224060031115
101201032234221
1142339a426a26
12174927322265
13893453ccaa1
14421b7666ca1
1521395637aeb
hex117a31984ed

1201032234221 has 4 divisors (see below), whose sum is σ = 1201951158432. Its totient is φ = 1200113310012.

The previous prime is 1201032234209. The next prime is 1201032234223. The reversal of 1201032234221 is 1224322301021.

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-1201032234221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201032234223) 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, 459460145 + ... + 459462758.

It is an arithmetic number, because the mean of its divisors is an integer number (300487789608).

Almost surely, 21201032234221 is an apocalyptic number.

It is an amenable number.

1201032234221 is a deficient number, since it is larger than the sum of its proper divisors (918924211).

1201032234221 is an equidigital number, since it uses as much as digits as its factorization.

1201032234221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918924210.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1201032234221 its reverse (1224322301021), we get a palindrome (2425354535242).

The spelling of 1201032234221 in words is "one trillion, two hundred one billion, thirty-two million, two hundred thirty-four thousand, two hundred twenty-one".

Divisors: 1 1307 918922903 1201032234221