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21022210012 = 225255552503
BaseRepresentation
bin10011100101000001…
…010111011111011100
32000021001222220202211
4103211001113133130
5321023141210022
613354002530204
71342643560006
oct234501273734
960231886684
1021022210012
118a08542591
1240a8366964
131ca03c012b
141035d75376
15830887e77
hex4e50577dc

21022210012 has 6 divisors (see below), whose sum is σ = 36788867528. Its totient is φ = 10511105004.

The previous prime is 21022210007. The next prime is 21022210021. The reversal of 21022210012 is 21001222012.

Adding to 21022210012 its reverse (21001222012), we get a palindrome (42023432024).

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21022209974 and 21022210001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2627776248 + ... + 2627776255.

Almost surely, 221022210012 is an apocalyptic number.

It is an amenable number.

21022210012 is a deficient number, since it is larger than the sum of its proper divisors (15766657516).

21022210012 is a wasteful number, since it uses less digits than its factorization.

21022210012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5255552507 (or 5255552505 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The spelling of 21022210012 in words is "twenty-one billion, twenty-two million, two hundred ten thousand, twelve".

Divisors: 1 2 4 5255552503 10511105006 21022210012