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1223211201 = 3993141057
BaseRepresentation
bin100100011101000…
…1011100011000001
310011020200120022120
41020322023203001
510001120224301
6321213354453
742212060262
oct11072134301
93136616276
101223211201
1157851a753
122a1798a29
13166560414
14b8652969
15725c2e36
hex48e8b8c1

1223211201 has 8 divisors (see below), whose sum is σ = 1631152224. Its totient is φ = 815372160.

The previous prime is 1223211193. The next prime is 1223211233. The reversal of 1223211201 is 1021123221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1223211201 - 23 = 1223211193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1223211281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9265 + ... + 50321.

It is an arithmetic number, because the mean of its divisors is an integer number (203894028).

Almost surely, 21223211201 is an apocalyptic number.

It is an amenable number.

1223211201 is a deficient number, since it is larger than the sum of its proper divisors (407941023).

1223211201 is an equidigital number, since it uses as much as digits as its factorization.

1223211201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50991.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1223211201 is about 34974.4363928856. The cubic root of 1223211201 is about 1069.4664125586.

Adding to 1223211201 its reverse (1021123221), we get a palindrome (2244334422).

The spelling of 1223211201 in words is "one billion, two hundred twenty-three million, two hundred eleven thousand, two hundred one".

Divisors: 1 3 9931 29793 41057 123171 407737067 1223211201