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220211012 = 22719939521
BaseRepresentation
bin11010010000000…
…10011101000100
3120100100212201102
431020002131010
5422333223022
633503515232
75312522420
oct1510023504
9510325642
10220211012
1110333787a
12618b8b18
1336812798
1421363b80
15144eca92
hexd202744

220211012 has 24 divisors (see below), whose sum is σ = 442646400. Its totient is φ = 93899520.

The previous prime is 220211003. The next prime is 220211021. The reversal of 220211012 is 210112022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (220211003) and next prime (220211021).

It is a junction number, because it is equal to n+sod(n) for n = 220210984 and 220211002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14189 + ... + 25332.

It is an arithmetic number, because the mean of its divisors is an integer number (18443600).

Almost surely, 2220211012 is an apocalyptic number.

It is an amenable number.

220211012 is an abundant number, since it is smaller than the sum of its proper divisors (222435388).

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

220211012 is a wasteful number, since it uses less digits than its factorization.

220211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39731 (or 39729 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 220211012 is about 14839.5084824262. The cubic root of 220211012 is about 603.8740179916.

Adding to 220211012 its reverse (210112022), we get a palindrome (430323034).

The spelling of 220211012 in words is "two hundred twenty million, two hundred eleven thousand, twelve".

Divisors: 1 2 4 7 14 28 199 398 796 1393 2786 5572 39521 79042 158084 276647 553294 1106588 7864679 15729358 31458716 55052753 110105506 220211012