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1213225221115 = 51499161871277
BaseRepresentation
bin10001101001111001110…
…110111011101111111011
311021222112202021221201201
4101221321312323233323
5124334141124033430
62325203054555031
7153436565141005
oct21517166735773
94258482257651
101213225221115
114285870104a6
1217716a808a77
138a53953472b
1442a12b5d375
152185acc98ca
hex11a79dbbbfb

1213225221115 has 8 divisors (see below), whose sum is σ = 1456841502000. Its totient is φ = 969932685792.

The previous prime is 1213225221113. The next prime is 1213225221149. The reversal of 1213225221115 is 5111225223121.

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 1213225221115 - 21 = 1213225221113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1213225221113) 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, 80928144 + ... + 80943133.

It is an arithmetic number, because the mean of its divisors is an integer number (182105187750).

Almost surely, 21213225221115 is an apocalyptic number.

1213225221115 is a deficient number, since it is larger than the sum of its proper divisors (243616280885).

1213225221115 is a wasteful number, since it uses less digits than its factorization.

1213225221115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161872781.

The product of its digits is 2400, while the sum is 28.

The spelling of 1213225221115 in words is "one trillion, two hundred thirteen billion, two hundred twenty-five million, two hundred twenty-one thousand, one hundred fifteen".

Divisors: 1 5 1499 7495 161871277 809356385 242645044223 1213225221115