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10012222020 = 2235166870367
BaseRepresentation
bin10010101001100011…
…00110001001000100
3221211202202120120210
421110301212021010
5131001112101040
64333300355420
7503053324443
oct112461461104
927752676523
1010012222020
114278702659
121b350a5b70
13c373a9538
146ada24d5a
153d8ec4480
hex254c66244

10012222020 has 24 divisors (see below), whose sum is σ = 28034221824. Its totient is φ = 2669925856.

The previous prime is 10012222019. The next prime is 10012222021. The reversal of 10012222020 is 2022221001.

It is an interprime number because it is at equal distance from previous prime (10012222019) and next prime (10012222021).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 10012221987 and 10012222005.

It is not an unprimeable number, because it can be changed into a prime (10012222021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83435124 + ... + 83435243.

It is an arithmetic number, because the mean of its divisors is an integer number (1168092576).

Almost surely, 210012222020 is an apocalyptic number.

10012222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10012222020 is an abundant number, since it is smaller than the sum of its proper divisors (18021999804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10012222020 is a wasteful number, since it uses less digits than its factorization.

10012222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166870379 (or 166870377 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 10012222020 its reverse (2022221001), we get a palindrome (12034443021).

The spelling of 10012222020 in words is "ten billion, twelve million, two hundred twenty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 166870367 333740734 500611101 667481468 834351835 1001222202 1668703670 2002444404 2503055505 3337407340 5006111010 10012222020