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1222212033 = 32719400191
BaseRepresentation
bin100100011011001…
…0111100111000001
310011011210210201100
41020312113213001
510000341241113
6321140125013
742200426250
oct11066274701
93134723640
101222212033
115779a7a99
122a1396769
131662a06b3
14b8472797
1572476d73
hex48d979c1

1222212033 has 12 divisors (see below), whose sum is σ = 2017619968. Its totient is φ = 698406840.

The previous prime is 1222212023. The next prime is 1222212077. The reversal of 1222212033 is 3302122221.

It is not a de Polignac number, because 1222212033 - 25 = 1222212001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1222211997 and 1222212015.

It is not an unprimeable number, because it can be changed into a prime (1222212023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9700033 + ... + 9700158.

Almost surely, 21222212033 is an apocalyptic number.

It is an amenable number.

1222212033 is a deficient number, since it is larger than the sum of its proper divisors (795407935).

1222212033 is a wasteful number, since it uses less digits than its factorization.

1222212033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19400204 (or 19400201 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1222212033 is about 34960.1492130683. The cubic root of 1222212033 is about 1069.1751388740.

Adding to 1222212033 its reverse (3302122221), we get a palindrome (4524334254).

The spelling of 1222212033 in words is "one billion, two hundred twenty-two million, two hundred twelve thousand, thirty-three".

Divisors: 1 3 7 9 21 63 19400191 58200573 135801337 174601719 407404011 1222212033