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1200221120101 = 9914549266239
BaseRepresentation
bin10001011101110010110…
…000001110011001100101
311020201222110210011201211
4101131302300032121211
5124131023101320401
62315212435551421
7152466412123033
oct21356260163145
94221873704654
101200221120101
11423013594983
1217473b75b571
13892463581c3
144213ba47553
1521349317951
hex11772c0e665

1200221120101 has 8 divisors (see below), whose sum is σ = 1201700864000. Its totient is φ = 1198741919760.

The previous prime is 1200221120099. The next prime is 1200221120117. The reversal of 1200221120101 is 1010211220021.

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 1200221120101 - 21 = 1200221120099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200221120801) 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, 4374940 + ... + 4641178.

It is an arithmetic number, because the mean of its divisors is an integer number (150212608000).

Almost surely, 21200221120101 is an apocalyptic number.

It is an amenable number.

1200221120101 is a deficient number, since it is larger than the sum of its proper divisors (1479743899).

1200221120101 is an equidigital number, since it uses as much as digits as its factorization.

1200221120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271779.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1200221120101 its reverse (1010211220021), we get a palindrome (2210432340122).

The spelling of 1200221120101 in words is "one trillion, two hundred billion, two hundred twenty-one million, one hundred twenty thousand, one hundred one".

Divisors: 1 991 4549 266239 4508059 263842849 1211121211 1200221120101