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1220222102201 = 13722739236699
BaseRepresentation
bin10001110000011010111…
…001111010101010111001
311022122121101011100011122
4101300122321322222321
5124443003324232301
62332321242235025
7154105145510144
oct21603271725271
94278541140148
101220222102201
11430547624853
121785a1ab5a75
138b0b2cb7b5b
14430b810705b
1521b1a1c981b
hex11c1ae7aab9

1220222102201 has 8 divisors (see below), whose sum is σ = 1234543528800. Its totient is φ = 1205979149728.

The previous prime is 1220222102147. The next prime is 1220222102227. The reversal of 1220222102201 is 1022012220221.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1220222102201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1220222102201.

It is not an unprimeable number, because it can be changed into a prime (1220222104201) 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, 19587251 + ... + 19649448.

It is an arithmetic number, because the mean of its divisors is an integer number (154317941100).

Almost surely, 21220222102201 is an apocalyptic number.

It is an amenable number.

1220222102201 is a deficient number, since it is larger than the sum of its proper divisors (14321426599).

1220222102201 is a wasteful number, since it uses less digits than its factorization.

1220222102201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39237063.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1220222102201 its reverse (1022012220221), we get a palindrome (2242234322422).

The spelling of 1220222102201 in words is "one trillion, two hundred twenty billion, two hundred twenty-two million, one hundred two thousand, two hundred one".

Divisors: 1 137 227 31099 39236699 5375427763 8906730673 1220222102201