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1222101201 = 31307311681
BaseRepresentation
bin100100011010111…
…1100100011010001
310011011121011200110
41020311330203101
510000324214301
6321133511533
742166455156
oct11065744321
93134534613
101222101201
115779317a2
122a13425a9
13166262109
14b844422d
15724540d6
hex48d7c8d1

1222101201 has 8 divisors (see below), whose sum is σ = 1630720224. Its totient is φ = 814108160.

The previous prime is 1222101197. The next prime is 1222101211. The reversal of 1222101201 is 1021012221.

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

It is a cyclic number.

It is not a de Polignac number, because 1222101201 - 22 = 1222101197 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1222101211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151920 + ... + 159761.

It is an arithmetic number, because the mean of its divisors is an integer number (203840028).

Almost surely, 21222101201 is an apocalyptic number.

It is an amenable number.

1222101201 is a deficient number, since it is larger than the sum of its proper divisors (408619023).

1222101201 is a wasteful number, since it uses less digits than its factorization.

1222101201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312991.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1222101201 is about 34958.5640580388. The cubic root of 1222101201 is about 1069.1428197679.

Adding to 1222101201 its reverse (1021012221), we get a palindrome (2243113422).

The spelling of 1222101201 in words is "one billion, two hundred twenty-two million, one hundred one thousand, two hundred one".

Divisors: 1 3 1307 3921 311681 935043 407367067 1222101201