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1222003130221 = 4388213221707
BaseRepresentation
bin10001110010000101000…
…011111111111101101101
311022211012111110221022101
4101302011003333331231
5130010130300131341
62333214104015101
7154200243136516
oct21620503777555
94284174427271
101222003130221
11431280a00535
121789ba461491
138b307c946a3
1443206881a0d
1521bc1736831
hex11c850fff6d

1222003130221 has 8 divisors (see below), whose sum is σ = 1250563950944. Its totient is φ = 1193448770640.

The previous prime is 1222003130191. The next prime is 1222003130239. The reversal of 1222003130221 is 1220313002221.

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 1222003130221 - 27 = 1222003130093 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 (1222003130251) 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, 1231551 + ... + 1990156.

It is an arithmetic number, because the mean of its divisors is an integer number (156320493868).

Almost surely, 21222003130221 is an apocalyptic number.

It is an amenable number.

1222003130221 is a deficient number, since it is larger than the sum of its proper divisors (28560820723).

1222003130221 is an equidigital number, since it uses as much as digits as its factorization.

1222003130221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3230571.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1222003130221 its reverse (1220313002221), we get a palindrome (2442316132442).

The spelling of 1222003130221 in words is "one trillion, two hundred twenty-two billion, three million, one hundred thirty thousand, two hundred twenty-one".

Divisors: 1 43 8821 379303 3221707 138533401 28418677447 1222003130221