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2220211012 = 221932875921
BaseRepresentation
bin1000010001010101…
…1011101101000100
312201201201101221111
42010111123231010
514021333223022
61004150454404
7106006324255
oct20425335504
95651641844
102220211012
11a3a284438
1251b664404
13294c89b36
14170c1cb2c
15cedb0477
hex8455bb44

2220211012 has 12 divisors (see below), whose sum is σ = 3905502076. Its totient is φ = 1104353280.

The previous prime is 2220211003. The next prime is 2220211031. The reversal of 2220211012 is 2101120222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 254530116 + 1965680896 = 15954^2 + 44336^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2220210983 and 2220211001.

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, 1437189 + ... + 1438732.

Almost surely, 22220211012 is an apocalyptic number.

It is an amenable number.

2220211012 is a deficient number, since it is larger than the sum of its proper divisors (1685291064).

2220211012 is a wasteful number, since it uses less digits than its factorization.

2220211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2876118 (or 2876116 counting only the distinct ones).

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

The square root of 2220211012 is about 47119.1151444931. The cubic root of 2220211012 is about 1304.5620804726.

Adding to 2220211012 its reverse (2101120222), we get a palindrome (4321331234).

The spelling of 2220211012 in words is "two billion, two hundred twenty million, two hundred eleven thousand, twelve".

Divisors: 1 2 4 193 386 772 2875921 5751842 11503684 555052753 1110105506 2220211012