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20120001022 = 211914545501
BaseRepresentation
bin10010101111001111…
…101101100111111110
31220221012022221201001
4102233033231213332
5312201210013042
613124253240514
71311410121052
oct225717554776
956835287631
1020120001022
118595241620
123a9619313a
131b88502164
14d8c201c62
157cb571bb7
hex4af3ed9fe

20120001022 has 8 divisors (see below), whose sum is σ = 32923638072. Its totient is φ = 9145455000.

The previous prime is 20120001001. The next prime is 20120001049. The reversal of 20120001022 is 22010002102.

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

It is a super-2 number, since 2×201200010222 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457272729 + ... + 457272772.

It is an arithmetic number, because the mean of its divisors is an integer number (4115454759).

Almost surely, 220120001022 is an apocalyptic number.

20120001022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20120001022 is a deficient number, since it is larger than the sum of its proper divisors (12803637050).

20120001022 is a wasteful number, since it uses less digits than its factorization.

20120001022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914545514.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20120001022 its reverse (22010002102), we get a palindrome (42130003124).

The spelling of 20120001022 in words is "twenty billion, one hundred twenty million, one thousand, twenty-two".

Divisors: 1 2 11 22 914545501 1829091002 10060000511 20120001022