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1220222212023 = 3613663524857
BaseRepresentation
bin10001110000011010111…
…010010101011110110111
311022122121101100220211010
4101300122322111132313
5124443003341241043
62332321244443303
7154105146445263
oct21603272253667
94278541326733
101220222212023
1143054769a311
121785a1b49533
138b0b3025b39
14430b81350a3
1521b1a1ec133
hex11c1ae957b7

1220222212023 has 8 divisors (see below), whose sum is σ = 1629617051248. Its totient is φ = 812154423744.

The previous prime is 1220222212021. The next prime is 1220222212061. The reversal of 1220222212023 is 3202122220221.

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

It is not a de Polignac number, because 1220222212023 - 21 = 1220222212021 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 (1220222212021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331760590 + ... + 331764267.

It is an arithmetic number, because the mean of its divisors is an integer number (203702131406).

Almost surely, 21220222212023 is an apocalyptic number.

1220222212023 is a deficient number, since it is larger than the sum of its proper divisors (409394839225).

1220222212023 is an equidigital number, since it uses as much as digits as its factorization.

1220222212023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663525473.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 1220222212023 its reverse (3202122220221), we get a palindrome (4422344432244).

The spelling of 1220222212023 in words is "one trillion, two hundred twenty billion, two hundred twenty-two million, two hundred twelve thousand, twenty-three".

Divisors: 1 3 613 1839 663524857 1990574571 406740737341 1220222212023